NDA General Ability 18 April 2021 | Physics Question 397 | General Science

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NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

Which one of the following statements is not correct for light rays?

Light travels at different speeds in different media

Light travels at almost 300 million metres per second in air

Light speeds down as it leaves a water surface and enters the air

Light speeds up as it leaves a glass surface and enters the air

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

A glass prism splits white light into different colours. This phenomenon is called dispersion of light by prism. Which one of the following statements is correct?

Red light will deviate the most and it is because of the reflection of light

Violet light will deviate the most and it is because of the refraction of light

Red light will deviate the most and it is because of the refraction of light

Violet light will deviate the most and it is because of the reflection of light

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

A current of 1.0 A is drawn by a filament of an electric bulb for 10 minutes. The amount of electric charge that flows through the circuit is

0.1 C

10 C

600 C

800 C

NDA General Ability 18 April 2021

MCQ (Single Correct Answer)

-1.33

Which one of the following formulas does not represent electrical power?

I² R

I R²

V I

V²/R

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Questions Asked from Marks 4

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