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INTRODUCTION TO PHYSICS(TEST-4)

Posted by: Unknown Posted date: 12:44 / comment : 0 ,

            INTRODUCTION TO PHYSICS

PHYSICS

TEST-4


121. The branch of physics deals with study of production propagation & properties of sound waves is  called  
a)   Magnetic     
b)   Optics  
c)   Statics     
d)   Acoustics


122.  If 0.61 is added to 167 with due regard to significant figures, then we get: 
a)   168       
b)   167  
c)   167.61     
d)   167.6


123. High energy physics deal with the 
a)   Study of electron behavior   
b)   Study of electron charge  
c)   Study of mechanics of energetic bodies  
d)   Study of properties and behavior of  elementary particles


124. Which one of the following Muslim scientists has made a significant contribution to the study of  alchemy 
a)   Jabir Bin Hayyan    
b)   Abu Abdullah Muhammad  
c)   Ibn-al-Haitham    
d)   Ibn-e-Sina


125. The book “Kitab-ul-Qanoon-ul-Masoodi” was written by 
a)   Ibn-e-Sina     
b)   Al-Razi   
c)   Abu-Rehan Al-Beruni    
d)   Ibn-al-Haitham


126. The first book on analytical “Hisab-ul-Jabrwal-Moqabl” was written by 
a)   Al-Khawarzami    
b)   Al-Beruni  
c)   Al-Razi     
d)   Ibn-e-Sina


127. “Kitab-ul-Manazir” the famous book on optics is written by 
a)   Ibn-e-Sina     
b)   Al-Khawrzimi  
c)   Jabir-bin-Hayyan    
d)   Ibn-ul-Haitham


128. In international system of units, the unit of length, mass, time, electric current, temperature, intensity  of light and quantity of light and quantity are called 
a)   Derived     
b)   Basic  
c)   Fundamental 
d)   Only b & c


129.  The number of significant figures in 0.098000 is: 
a)   4       
b)   2  
c)   3      
d)   6


130. 1 degree is equal to _______ radians:  
a)   0.0245     
b)   0.0561  
c)   3.1423     
d)   0.0174


131. The famous mathematician & the founder of algebra was 
a)   Al-Kindi     
b)   Al-Khwarizmi  
c)   Al-Beruni     
d)   Naseruddin Tusi


132. 10-9 second are equivalent to: 
a)   Deci second     
b)   Nano second  
c)   Milli second     
d)   Micro second


133. The standard of time in SI system is the clock of: 
a)   Uranium     
b)   Rubidium  
c)   Cesium     
d)   Radium


134. One Angstrom equals  
a)   10-8 cm     
b)   108 m  
c)   10-6 m     
d)   108 mm


135. 10 Giga hertz is equivalent to  
a)   1010 Hz     
b)   109 Hz  
c)   107 Hz     
d)   10-10 Hz


136. Which of the following is the unit of electrical energy? 
a)   Kg m/s2     
b)   Dyne  
c)   Kw-hr     
d)   Joules / sec


137.  One Newton is equal to: 
a)   102 dynes      
b)   103 dynes   
c)   104 dynes      
d)   105 dynes


138. The unit of dimensions of which of the following pairs of physical quantities are identical? 
a)   Impulse and Momentum   
b)   Stress and Strain  
c)   Pressure and Density    
d)   Gravitational potential and Energy


139. The dimensions of impulse are the same as that of: 
a) Energy  
b) Work  
c) Power   
d) Momentum


140. 0.0084 has _______ significant figures  
a)   2      
b)   4  
c)   5      
d)   1


141. The _______ sciences deal with the properties and behavior of non-living things: 
a)   Natural     
b)   Social  
c)   Physical     
d)   Biological


142. The people of _______ were the pioneers of decimal system: 
a)   China     
b)   Indus valley  
c)   Euphrates     
d)   Egypt


143. Physics is the quantitative science based primarily on: 
a)   Definition     
b)   Experiment and measurement  
c)   Hypothesis     
d)   A collection of skills


144. The branch  of science, which deals with the interaction of matter and energy, is called:  
a)   Chemistry     
b)   Mathematics  
c)   Statistics     
d)   Physics


145. Some concepts of static electricity were introduced by: 
a)   Greeks     
b)   Chinese  
c)   Thales     
d)   Einstein


146. The theory which modified the Newton’s laws of motion for describing the bodies moving with  speed comparable with the speed of light is: 
a)   Electromagnetic Theory   
b)   Faraday’ laws  
c)   Theory of relativity    
d)   Collision theory


147. Astrophysics deals with: 
a)   Particles in space    
b)   Elementary particles  
c)   Neutrons Protons    
d)   Electrons


148. Physics is the Science based on: 
a)   Interaction between matter and energy  
b)   Energy of the material  
c)   Mass of the material    
d)   Neither energy nor matter


149. The branch of sciences which deals with the properties of matter and energy along with the  interaction between them is known as:  
a)   Geography     
b)   Geology  
c)   Biology     
d)   Physics


150. One micro second is: 
a)   10-6 sec     
b)   10-9 sec  
c)   106 sec     
d)   10-3 sec



CORRECT ANSWER


Question
Answers
121.
D
122.
C
123
D
124
A
125
C
126
A
127
D
128
D
129
B
130
D

Question
Answers
131
B
132
B
133
C
134
A
135
A
136
C
137
D
138
A
139
D
140
A

Question
Answers
141
C
142
B
143
B
144
D
145
C
146
C
147
A
148
A
149
D
150
A

PHYSICS

Posted by: Unknown Posted date: 12:31 / comment : 0


PHYSICS

1).Measurement



2).Vectors & Equilibrium



 3).Motion & Force

  • Part-1
  • Part-2
  • Part-3


4).Work & Energy



5).Circular Motion

  • Part-1
  • Part-2
  • Part-3


6).Fluid Dynamics

  • Part-1
  • Part-2
  • Part-3


7).Oscillations

  • Part-1
  • Part-2
  • Part-3


8).Waves

  • Part-1
  • Part-2
  • Part-3


9).Physical Optics

  • Part-1
  • Part-2
  • Part-3


10).Optical Instrument

  • Part-1
  • Part-2
  • Part-3


11).Heat & Thermodynamics



 12).Electrostatic

  • Part-1
  • Part-2
  • Part-3


13).Current Electricity

  • Part-1
  • Part-2
  • Part-3


14).Electromagnetism

  • Part-1
  • Part-2
  • Part-3


15).Electromagnetic Induction

  • Part-1
  • Part-2
  • Part-3


16).Alternating Current

  • Part-1
  • Part-2
  • Part-3


17).Physics of Solid

  • Part-1
  • Part-2
  • Part-3


18).Electronics

  • Part-1
  • Part-2
  • Part-3


19).Dawn of Modern Physics



20).Atomic Spectra

  • Part-1
  • Part-2
  • Part-3


21).Nuclear Physics

  • Part-1
  • Part-2
  • Part-3


CONCEPTUAL MCQ's BIOLOGY

Posted by: Unknown Posted date: 21:07 / comment : 0 ,


CONCEPTUAL MCQ's BIOLOGY

SESSION#1

CH#1 CELL STRUCTURE & FUNCTION

Posted by: Unknown Posted date: 21:04 / comment : 0 ,



Choose the most appropriate answer.

1) They are the remains or impressions of living organisms preserved in rocks:
a) Tissues
b) Fossils
c) Calcium
d) Statutes


2).It is the study of fossils and their relationship to the evolution of life on earth:
a) embryology
b) taxonomy
c) physiology
d) None


3)Man has been able to produce food in greater quantities due to advancement in:
a) Mathematics
b) Space science
c) Physics
d) Biology


4) Taxonomy is the study of:
a) Functions of different parts of organisms
b) Naming and classification of organisms
c) Hereditary characters
d) Structure and functions of cells


5) Anatomy deals with the study of:
a) Relationship between organisms and their environment
b) Development of an organism from a fertilized egg or zygote
c) Structure and function of molecular components of the cell
d) Internal organs of organisms


6) Pollution of our surroundings in the recent past has resulted because of:
a) Biological Research
b) Rapid industrialization
c) Information Technology
d) Forestation


7) The statement made by a scientist, which may be the possible answer to the problem.
a) Deduction
b) Theory
c) Hypothesis
d) Law


8) Which of the following is involved in the spread of malaria ?
a) Bacterium
b) Bad Air
c) Virus
d) Mosquito


9)People who slept outside in open spaces suffered from malaria more frequently than those who slept indoors, indicates that:
a) Bad air is involved in the spread of Malaria
b) Bacteria are involved in the spread of Malaria
c) Mosquitoes are involved in the spread of Malaria
d) Birds are involved in the spread of Malaria


10) The entry of Plasmodium into the blood of Man was discovered by:
a) A. F. A. King
b) Laveran
c) Ronald Ross
d) Grassi


11) In case of typical attack, malarial patient feels:
a) Very cold and chilly
b) Very Warm
c) Sleepy
d) Normal


12) Sexual reproduction of the malaria parasite occurs in :
a) Man
b) Mosquito
c) Red blood cells
d) Both a and b


13) Inside human body Plasmodium attacks:
a) Nerve cells
b) Red blood cells
c) White blood cells
d) Kidney cells


14) In the life cycle of Plasmodium fusion of gametes and formation of gametes and formation of zygote take place in:
a) Body of Man
b) Body of Mosquito
c) Air
d) Water


15) The part of Cinchona plant found suitable for the treatment of Malaria was::
a) Seeds
b) Fruits
c) Leaves
d) Bark


16)When sporozoites of Plasmodium pass from the blood to liver cells, they multiply for:
a) 8 days
b) 10 days
c) 12 days
d) 14 days


17) Man can now be saved from fatal diseases by using:
a) Vaccine
b) Bacteria
c) Antibiotics
d) Plasmodium


18) The word malaria has been derived from the combination of two words which are:
a) Latin
b) Italian
c) Greek
d) Arabic


19) Which one of the following best describes the scientific method?
a) Doing experiments in laboratories
b) Collecting all known facts on a subject
c) Developing and testing hypothesis
d) Using sensitive electronic measuring instruments


20) Which of the following stages of Plasmodium is diploid?
a) Merozoite
b) Sporozoite
c) Zygote (ookinete)
d) Gametocyte


21) Which of the following stages of Plasmodium is spindle shaped?
a) sporozoite
b) Merzoite
c) Gametocyte
d) Ookinete


22) Which of the following forms of Plasmodium is present in the saliva of mosquito?
a) Merozoites
b) Sporozoites
c) Gametocytes
d) Zygote


23) Which of these attack red blood cells?
a) ookinetes
b) Gametocytes
c) Sporozoites
d) Merozoites


24) Which of the following is not true of malaria patient?
a) feels cold and chilly
b) feels headache
c) feels appetite
d) temperature rises up to 106 oF


MATH Weekly TEST-2

Posted by: Unknown Posted date: 16:09 / comment : 0 , ,



Q # 1 The set which has no proper subset is…….
a) Universal set
b) {∅}
c) {{∅}}
d) ∅


Q # 2 How many elements are there in the set {{ a, b }}
a) 2
b) 1
c) No elemet
d) Both a & b


Q # 3: Which of the following statement is wrong?
a) { 1, 2} = { 2, 1}
b) Φ⊆{{a}}
c) { a }⊆{{a}}
d) { a }∈{{a}}


Q # 4: Number of elements of the power set of the set { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 } is
a) 64
b) 128
c) 512
d) None


Q # 5 If 2m = 4x and 2w = 8x then what is m in term of w?
a) w-1
b) w+1
c) 2w-1
d) 2w+1


Q # 6: If α and β are not real cube roots of unity then α5 + β5 + α β = ?
a) 1
b) -1
c) 0
d) 3


Q # 7: For any integer k, ωn = …… where n = 3k+ 12.
a) 1
b) 0
c) 2
d) undefined


Q # 8: ………… is a factor of 12x3 + 14x2 + x – 2
a) 4x+1
b) 3x-2
c) x+2
d) 3x+2


Q # 9 The function 3x2 + 3x – p has two real roots, the roots differ by 5 find p
a) 9
b) 18
c) 27
d) 36


Q # 10 The equation 9x2 – 30x + q =0 has two equal roots then q = ?
a) -25
b) 20
c) 25
d) 22


Q # 11: Determine the remainder if 2x3 – 7x2 + 4x – 1 ÷ x + 3.
a) 220
b) 130
c) -130
d) None


Q # 12: What is the equation whose roots are 1/2 and-1/6?
a) 12x2 – 4x – 1= 0
b) 12x2 – 4x + 1= 0
c) 12x2 – 4x + 1= 0
d) None.


Q # 13 Rational numbers were introduced by
a) Arabs
b) Greeks
c) Egyptians
d) Latin


Q # 14 If A be n rowed square singular matrix then (adjA).A = A.( adjA) = ?
a) Identity matrix
b) Scalar matrix
c) Null Matrix
d) None


Q # 15 If A is a square matrix of the order 2 and 2│A│= 4 then 3│2A│= ?
a) 12
b) 64
c) 24
d) 32


Q # 16: if A is a matrix of the order 3 then A (Adj A)= ?
a) │A│2
b) │A│.I3
c) │Adj A│
d) Adj(Adj A)


Q # 17: If A,B and C are three matrices then (ABC)-1 = ?
a) A-1 B-1 C-1
b) C-1 A-1 B-1
c) C-1 B-1 A-1
d) None.


Q# 18 If[r1=x 12 & r2=√ 2 √ 72is a singular matrix then x = ?
a) 2
b) 1
c) 4
d) 1/4


Q # 19: The perimeter of a square is numerically greater than its area by 4, what is the diagonal of the square?
a) 2
b) √ 2
c) 4
d) 2 √ 2


Q # 20 Which of the following statements is true?
a) A group has more than one identity elements
b) Each group must be an abelian group.
c) Each groupoid is a semigroup.
d) Each element of a group has an inverse element.


Q # 21 Conjugate of – ω is?
a) -w
b) w2
c) -w2
d) None


Q # 22 If a + b = 2 and ab = 1 then a3 + b3 = ?
a) 2
b) 3
c) 4
d) -2


Q # 23 The roots of x2 – 4x + 8 = 0 are
a) (2,2)
b) (3,4)
c) (2,-2)
d) Both a & b


Q # 24: The equation ax2 + bx + c = 0 has both roots positive iff
a) b > 0, c > 0
b) b < 0, c > 0
c) c < 0
d) b < 0, c < 0.


Q # 25: Find solution set of │x – 3 │= 4
a) { 5, -3 }
b) { 7, - 1 }
c) {- 4, 2}
d) { 4, 2}.


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