# IGCSE Physics Paper-1: Specimen Questions with Answers 26 - 28 of 149

## Question number: 26

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MCQ▾

### Question

4 divers are there, 2 in sea water and 2 in fresh water. Which diver will face lowest pressure known that sea water is denser than fresh water?

### Choices

Choice (4)Response

a.

D

b.

C

c.

A

d.

B

b.

### Explanation

Pressure in liquid we can define as

Where ρ = Density of liquid

g = Gravitational acceleration

h = Height above the point at which we measure the pressure

In this case density of fresh water is rarer than the sea water and height of diver C is less.

Thus on diver C is there the lowest pressure.

## Question number: 27

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MCQ▾

### Question

A road has a length of 60 km. A bus takes 20 min to travel between the two ends of the road. Find average speed of the bus?

### Choices

Choice (4)Response

a.

150 km/h

b.

3.0 km/h

c.

1000 km/h

d.

2.5 km/h

b.

### Explanation

Here to find the average speed we can use the formula for this is given as,

## Question number: 28

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MCQ▾

### Question

Which block has the lowest thermal capacity if same heat is applied and he temperature rise is given in the figure here?

### Choices

Choice (4)Response

a.

b.

c.

d.