Question

2. A ray of light incident on glass slab finally
emerges out of it. The ray which emerges
out is called :
(a) incident ray (b) refracted ray
(c) emergent ray (d) none of these
3. A ray of light travelling obliquely from glass
to air :
(a) bends towards the normal
(b) bends away from the normal
(c) does not deviate from its path
(d) none of these
4. When a coin placed in a bowl of water and
seen from above, it appears :
(a) raised from its position
(b) below its position
(c) at the same position
(d) none of these
5. When a ray of light strikes the glass slab
at 90°, it is seen that it does not deviate
from its path. In such a situation :
(a) angle of incidence is zero
(b) angle of refraction is zero
(c) both (a) and (b)
(d) none of these​

Answer 1

Answer:

2.(a)

3.(c)

4.(a)

5.(c)