1. . The velocity of light is:
(A) 3 × 10⁸ m/s
(B) 330 km/s
(C) 330 m/s
(D) 3 × 10⁵ m/s
2. . Light waves are:
(A) Mechanical waves
(B) Longitudinal waves
(C) Electromagnetic waves
(D) Matter waves
3. . Visible light has a wavelength in the range of:
(A) 400 nm
(B) 400 nm to 700 nm
(C) 700 nm
(D) 700 nm to 1000 nm
4. . Wave theory of light was proposed by:
(A) Newton
(B) Huygens
(C) Maxwell
(D) Einstein
5. . The turning back of a part of light from the boundary of a medium is called:
(A) Refraction
(B) Rarefaction
(C) Polarization
(D) Reflection
6. . The bending of light when it enters from one medium to the other is called:
(A) Reflection
(B) Refraction
(C) Dispersion
(D) Diffraction
7. . The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for all angles of incidence. This law is known as:
(A) Snell’s law
(B) Hook’s law
(C) Lenz’s law
(D) Law of reflection
8. . Newton stated in his Hypothesis of light that light was composed of:
(A) Particle nature
(B) Wave nature
(C) Particle and wave nature
(D) None
9. . Corpuscular theory of light was propounded by:
(A) Newton
(B) Huygens
(C) Einstein
(D) Maxwell