Polytechnic TRB Physics Model Question Paper with Answer Keys - 1

Question: 1

The product of the moment of inertia and the angular acceleration is

(A) Angular momentum

(B) Torque

(C) Work

(D) Force

Ans: B

Torque

Question: 2

The acceleration due to gravity on the surface of the earth is maximum and it

(A) increases as we go down

(B) decreases as we go up or down

(C) increases as we go up

(D) neither increases nor decreases as we go up or down

Ans: B

decreases as we go up or down

Question: 3

What is MRI?

(A) Magnetic Resonance in Intestines

(B) Magnetic Resonance Imaging

(C) Magnetic Recording of Investigations

(D) Magnetic Record of Intestines

Ans: B

Magnetic Resonance Imaging

Question: 4

CT scan is done by using

(A) Visible lights

(B) X  rays

(C) Ultrasonic waves

(D) Infra red rays

Ans: B

X  rays

Question: 5

Light from the sun reaches earth in about

(A) 2 minutes

(B) 4 minutes

(C) 6 minutes

(D) 8 minutes

Ans: D

8 minutes

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