PHYSICS MULTIPLE CHOICE QUESTIONS SET 148

PHYSICS 

MULTIPLE CHOICE QUESTIONS SET 148

1. Lamberts law is related to
(a)Reflection
(b)Refraction
(c)Interference
(d)illumination

2. Which of the following laws validates the statement that matter can neither be created nor destroyed ?
(a)Law of conservation of energy
(b)Le Chateliers Principle
(c)Law of conservation of mass
(d)Law of osmosis

3. Decibel is the unit used for
(a)Speed of light
(b)Intensify of heat
(c)Intensity of sound
(d)Radio wave frequency

4. The term Isoneph indicates the lines of equal
(a) cloudiness
(b) salinity
(c) rainfall
(d) pressure

5. The atmospheric layer reflecting radio waves is called
(a)Ozonosphere
(b)Ionosphere
(c)Stratosphere
(d)Mesosphere

6. Cryogenics is a science dealing with
(a)high temperatures
(b)low temperatures
(c)friction and wear
(d)growth of crystals

7. The mass energy relation is the outcome of
(a)quantum theory
(b)general theory of relativity
(c)field theory of energy
(d)special theory of relativity

8. Which of the following are used for accurately measuring very small time intervals ?
(a)Pulsars 
(b)Quartz clocks
(c)Atomic clocks
(d)White dwarfs

9. Danger signals are generally red as red light
(a)is least bright
(b)undergoes least deviation
(c)has lowest velocity
(d)gives comfort to eye

10. A simple microscope consists of
(a)a short focus convex lens
(b)a long focus convex lens
(c)a short focus concave lens
(d) a long focus concave lens
ANSWER: 

1 d 

2 c 

3 c 

4 a 

5 b 

6 b 

7 d 

8 c 

9 b 

10 a