Read the following and answer any four questions from 19 (i) to 19 (v)
Consider the following diagram of refraction of light through glass slab
19 (i) What is the refracted ray?
a. IM
b. MN
c. NP
d. OS
19 (ii) Emergent ray is parallel to direction of
a. reflected ray
b. refracted ray
c. incident ray
d. none
19 (iii) Identify the correct emergent ray
a. NQ
b. NR
c. NP
d. NO
19 (iv) The ratio of sin i/sin r is a constant and called as
a. ohm’s law
b. law of reflection
c. Faraday’s law
d. Snell’s law
19 (v) The bending of light while it travels from air to glass is due to change in its
a. velocity
b. wavelength
c. frequency
d. both a and b
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