TRB Assistant Professor Previous Year Question Paper - 3

Question: 11

Which one of the following remains constant while throwing the ball upward?

(A) Acceleration

(B) Force

(C) Velocity

(D) Kinetic energy

Ans: A

Acceleration

Question: 12

The unit of electric field is

(A) mV-1

(B) Volt per meter

(C) Vm2

(D) V2m2

Ans: B

Volt per meter

Question: 13

Who among the following invented the steam engine?

(A) Marconi

(B) Thomas Savery

(C) Wright Brothers

(D) James Watt

Ans: D

James Watt

Question: 14

The boiling point of a liquid is

(A) Affected by addition of soluble solid

(B) Increases with increase of pressure

(C) Both (a) and (b)

(D) None of these

Ans: C

Both (a) and (b)

Question: 15

Principal focus of a spherical mirror is between

(A) F and C

(B) P and C

(C) Beyond C

(D) At C

Ans: B

P and C

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