IGCSE Physics Paper-1: Specimen Questions with Answers 22 - 24 of 149

Question 22

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Question

MCQ▾

A glass tank contains some water with length QR and the width RS of the tank. What other distance is same to RS so that we can find volume of the water?

A glass tank filled with some water

A Glass Tank Filled with Some Water

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Choices

Choice (4)

a.

TV

b.

ST

c.

TU

d.

SV

Answer

c.

Explanation

Here in given figure, water inside the glass tank filled till height ST.

Now, to find the volume we must know about Length, breath and height.

Here length and width QR and RS is given respectively. And from figure it is clear that width of the tank is,

Question 23

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Question

MCQ▾

Which diagram correctly shows rays passing through a camera lens?

Choices

Choice (4)

a.

Ray passing through a camera len
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b.

Ray passing through camera lens.
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c.

Ray passing through a camera lens.
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d.

Correct arrangement of rays
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Answer

a.

Explanation

From camera lens we got small image at opposite side of the object. Only two options show the smaller image than the object. But arrangement of the rays correct in following image,

Correct arrangement of ray

Correct Arrangement of Ray

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Question 24

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Question

MCQ▾

What effect changes direction of water waves on moving from shallow water to deep water?

effect changes direction of water waves on moving from water.

Effect Changes Direction of Water Waves on Moving from Water

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Choices

Choice (4)

a.

diffraction

b.

refraction

c.

dispersion

d.

reflection

Answer

b.

Explanation

Refraction can be define as the wave or light deflect when it passing through one medium to another medium or density change at the interface of medium.

Diffraction and dispersion are contains of spreading. And reflection means throwing back of wave, light, etc.

In above figure wave travels from shallow water to deep water. And from figure wave deflect from its original direction. So from definition refraction is occurred.

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