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Home → Physics → SSC CGL → Physics Questions for SSC CGL

Physics Questions for SSC CGL

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Physics, SSC CGL
Q1. One astronomical unit is the average distance between
(a) Earth and the Sun     
(b) Earth and the Moon
(c) Jupiter and the Sun  
(d) Pluto and the Sun

Q2. Decibel is the unit of
(a) speed of light              
(b) intensity of sound
(c) intensity of heat        
(d) None of these

Q3. Which of the following is not a vector quantity?
(a) speed             
(b) velocity
(c) torque            
(d) displacement

Q4. When a steel ball is placed on the surface of mercury, it does not sink because
(a) of the surface tension of mercury     
(b) mercury is a semisolid
(c) of the high viscosity of mercury          
(d) the density of mercury is greater than that of steel

Q5. Harry Brearley has invented
(a) Electric iron
(b) Electromagnet
(c) Stainless Steel
(d) Gramophone

Q6. The absorption of ink by blotting paper involves
(a) capillary action phenomenon
(b) viscosity of ink
(c) siphon action
(d) diffusion of ink through the blotting

Q7. Light year is a unit of
(a) Time
(b) Light
(c) Distance
(d) Intensity of light

Q8.Pa(Pascal) is the unit for
(a) thrust 
(b) pressure
(c) frequency 
(d) conductivity

Q9. In vacuum the speed of light depends upon
(a)Wavelength
(b)Velocity of the source of light
(c)Frequency
(d)None of these

Q10. The amount of light reflected depends upon the
(a) Nature of the surface
(b) Smoothness of the surface
(c) Nature of material of object
(d) All of the above

Q11. A well cut diamond appears bright because of 
(a) Dispersion
(b) Total internal reflection
(c) Its emit light
(d) Radioactive

Q12. When a ray or light enters a glass slab from air
(a) Its wavelength increase
(b) Its wavelength decrease
(c) Its frequency increase
(d) Both are increases











Solutions

1.A
2.B
3.A
4.D
5.C
6.A
7.C
8.B
9.D
10.D
11.B
12.B











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