Physics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 64 - 66 of 73

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Question number: 64

» Physics » Motion and Force

MCQ▾

Question

The figure shown below depicts the distance travelled by a body as a function of time.

A distance vs time graph

A Distance vs Time Graph

Find the average and maximum speed of a body by using given traveled distance in given time

The average speed and maximum speed between 0 and 20 s are

Choices

Choice (4) Response

a.

2.0 m/s, 2.6 m/s respectively

b.

1 m/s, 2.0 m/s respectively

c.

1.3 m/s, 2.0 m/s respectively

d.

1 m/s, 1.6 m/s respectively

Question number: 65

» Physics » Motion and Force

MCQ▾

Question

The graph shows positions as a function of time for two trains A and B running on parallel tracks. For times greater than Equation , which of the following statement is true?

Positions as a function of time for two trains A ans B

Positions as a Function of Time for Two Trains a Ans B

Positions as a function of time for two trains A and B running on parallel tracks

Choices

Choice (4) Response

a.

At time Equation , both trains have the same velocity.

b.

A and B trains may have the same velocity at some time earlier than Equation .

c.

Graph indicates that both trains have the same acceleration at a given time.

d.

A and B trains speed up all the time.

Question number: 66

» Physics » Magnetism & Electricity at Work

Appeared in Year: 2013

MCQ▾

Question

Consider a simple circuit containing a battery and three identical incandescent bulbs A, B and C. Bulb A is wired in parallel with bulb B and this combination is wired in series with bulb C. What would happen to the brightness of the other two bulbs if bulb A were to burn out?

Choices

Choice (4) Response

a.

There would be no change in the brightness of either bulb B or bulb C

b.

A and B would get brighter

c.

Only bulb B would get brighter

d.

Bulb B would get brighter and bulb C would get dimmer

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