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Quiz on Sequel of Refraction of Light. Which of the following is/are phenomena of refraction? swimming pool looks shallower than it really is a word seems larger when view through a block of glass (iii) chopstick half immersed in water seems to bend upward.

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slide2
Which of the following is/are phenomena of refraction?

swimming pool looks

shallower than it really is

a word seems larger when

view through a block of glass

(iii) chopstick half immersed in

water seems to bend upward

Only (i)

Only (ii)

Only (i)and (iii)

All of the above

slide3
2.Which of the following make use of refraction?

periscope

telescope

plane mirror

colour filter

slide4
3.Convex lens

diverges light.

converges light.

is thinner in the middle.

reflects light.

slide5
4.Which of the following instruments make use of convex lens?

microscope

hand lens

periscope

optical fibres

Only (i) and (ii)

Only (i) and (iii)

Only (ii) and (iii)

Only (iii) and (iv)

slide6
5.Concave lens

diverges light.

is thicker in the middle.

reflects light.

converges light.

slide7
6.The lens used in hand lens is

concave lens.

convex lens.

plane mirror.

colour filter.

slide8
7.When we look at an object in the water at the shore, it appears to be

bent.

laterally inverted.

at a lower position.

at a higher position.

slide9
8. When we look at a burning candle, the images of the objects behind the candle become distorted. This is due to

reflection.

refraction.

dispersion.

total internal reflection.

slide10
9.Which of the following make(s) use of total internal reflection?

(i) optical fibres

(ii) cat’s eye reflector

(iii) endoscopy

Only (i)

Only (i) and (ii)

Only (i) and (iii)

All of the above

slide11
10.Which of the following is/are the advantage(s) of using optical fibres?

Signals can be transmitted in

optical fibres over a long distance.

Signals in optical fibres are less

likely to be interfered.

(iii) A large amount of signals

can be transmitted in optical fibres.

Only (i)

Only (i) and (ii)

Only (ii) and (iii)

All of the above

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