NDA General Ability 10 April 2022 | Physics Question 357 | General Science

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NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

What is the mass of a material, whose specific heat capacity is 400 J/(kg °C) for a rise in temperature from 15°C to 25°C, when heat received is 20 kJ ?

0.1 kg

1 kg

10 kg

5 kg

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

The specific latent heat of vaporization of a substance is the quantity of heat needed to change unit mass from

liquid to vapour with a change of temperature

liquid to vapour without a change of temperature

vapour to liquid without a change of temperature

vapour to liquid with a change of temperature

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

Evaporation from the surface of a given liquid takes place more rapidly when

the temperature is high and the surface area of the liquid is large

the temperature is low and the surface area of the liquid is large

the temperature is low and the surface area of the liquid is small

the temperature is high and the surface area of the liquid is small

NDA General Ability 10 April 2022

MCQ (Single Correct Answer)

-1.33

Which of the following statements correctly explains/explain the existence of a positive force between two electric charges?

1. Both the charges are positive.

2. Both the charges are negative.

3. Both the charges are oppositely charged.

Select the correct answer using the code given below.

1 only

2 only

1 and 2 only

1, 2 and 3

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