An object is executing uniform circular motion. Which of the following quantities remain(s) constant during the object’s motion?

Which among the following is measured using a Vernier Caliper?

A. Dimensions

B. Time

C. Sound

D. Temperature

Consider the following statements:
1: It takes approximately 11 seconds for the light to reach the earth from moon
2: It takes approximately 8 minutes for the light to reach from the sun.
3: It takes 4.22 years for the light to reach from the nearest star Alpha Centauri
Which among the above statements is/ are correct ?

A. 1 & 2 only

B. 2 & 3 only

C. 1 & 3 only

D. 2 only

One joule of work is said to be done when__:

A. a force of 1 dyne causes a displacement of 1 cm.

B. a force of 1 dyne causes a displacement of 1 m.

C. a force of 1 N causes a displacement of 1 cm.

D. a force of 1 N causes a displacement of 1 m.

Consider the following:
1. Mica
2. Graphite
3. Sulphur
4. Human body
Which among the above is / are electrical conductors?

A. Only 1, 2 & 4

B. Only 2, 3 & 4

C. Only 2 & 4

D. Only 2

Consider the following statements:
1. Infra-red radiations produce heating effect, but not the visible radiation.
2. Infra-red radiations do not get scattered as easily as compared to visible light
Which among the above statements is / are correct?

A. Only 1

B. Only 2

C. Both 1 & 2

D. Neither 1 nor 2