NDA General Ability 16 April 2023 | Physics Question 67 | General Science

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

-1.33

An electric bulb is rated as 220 V and 80 W. When it is operated on 110 V, the power rating would be:

80 W

60 W

40 W

20 W

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

-1.33

In the dispersion of white light by a common glass prism, which one among the following is correct?

Red light deviates the most because red light has highest speed in prism

Blue light deviates the most because blue light has highest speed in prism

Red light deviates the most because red light has lowest speed in prism

Blue light deviates the most because blue light has lowest speed in prism

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

-1.33

Which one among the following is true for the speed of sound in a given medium?

Speed of sound remains same at all frequencies

Speed of sound is faster at higher frequencies

Speed of sound is slower at higher frequencies

Speed of sound is slower at higher wavelengths

NDA General Ability 16 April 2023

MCQ (Single Correct Answer)

-1.33

Which one of the following telescopes contains only mirrors?

Galilean telescope

Keplerian telescope

Newtonian telescope

Schmidt telescope

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General Science

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