# NTPC CBT-2 Physics Quiz - 21

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## Question 1:

What is the S.I. unit of luminous intensity?

## Question 2:

A projectile is fired with velocity u making angle θ with the horizontal. What is the change in velocity when it is at the highest point.

## Question 3:

Which of the following is/are correct statements with respect to the image formed in a plane mirror?

1. Image is always virtual
2. The distance of the image from the mirror is the same as the distance between object and mirror
3. Image is laterally inverted

Select the correct option from the codes given below:

## Question 4:

The roof and walls of the auditorium are generally covered with sound-absorbent materials to reduce the effect of –

## Question 5:

1 kw hour is equal to 3600 kilojoules, Kilowatt-hour is an unit of_____?

## Question 6:

Which of the following is the S.I unit of momentum?

## Question 7:

Contact lenses are medical devices worn directly on the cornea of the eye, these lenses are normally made of?

## Question 8:

The hottest part of the gas flame is known as-

## Question 9:

The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is Inertia then, which of the following quantity is a measure of inertia?

## Question 10:

At what angle should two plane mirrors be placed to obtain three images of an object?