NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1027 - 1031 of 1123

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Passage

Direction: Study the picture carefully and answer the question

Image shows the instrument

Image Shows the Instrument

Image shows the instrument

Question number: 1027 (3 of 3 Based on Passage) Show Passage

» Physics » Sound

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MCQ▾

Question

The instrument shown in the picture is designed to

Choices

Choice (4) Response

a.

Listen sounds produced within the body

b.

Send sound in a particular direction

c.

Reduce reverberation

d.

Listen the reflected sound in a cinema hall

Question number: 1028

» Physics » Sound

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MCQ▾

Question

In stethoscopes, the sound of the patient’s heartbeat reaches the doctor’s ears by

Choices

Choice (4) Response

a.

Single reflection

b.

Multiple reflections

c.

Multiple rare fractions

d.

Multiple refractions

Question number: 1029

» Physics » Force & Laws of Motion

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MCQ▾

Question

A small bullet fired from a gun can cause more threat to the life of a person than a bus moving with a speed of 5km/s. Which of the following statements would be the correct explanation of this fact?

Choices

Choice (4) Response

a.

The impact produced by the object depends on its mass and velocity.

b.

Momentum of the bullet is many times greater than that of the bus.

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 1030

» Physics » Sound

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MCQ▾

Question

The acronym SONAR stands for

Choices

Choice (4) Response

a.

Sound Navigation Amplitude Ranging

b.

Source of Noise and Response

c.

Source of Noise and Reflection

d.

Sound Navigation and Ranging

Question number: 1031

» Physics » Gravitation & Pressure

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MCQ▾

Question

The value of is minimum at equator and maximum at poles. The reason behind this statement is

Choices

Choice (4) Response

a.

The centripetal force of earth is weaker at equator than that at poles

b.

The radius at the equator is more than that at poles

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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