NSO Level 1- Science Olympiad (SOF) Class 9: Questions 1023 - 1027 of 1128

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Question 1023

Question

MCQ▾

At the end of the auditory canal, there is a thin membrane called

Choices

Choice (4)Response

a.

Eardrum

b.

Hammer

c.

Eustachian tube

d.

Pinna

Question 1024

Question

MCQ▾

It is compulsory for the driver and co-driver to wear seat belt in traffic rule. The scientific explanation of this rule is

Choices

Choice (4)Response

a.

To avoid accidents by dashing with the dash board.

b.

To avoid the chances of dashing with the dash board while applying breaks.

c.

The passenger moves forward due to inertia while applying breaks.

d.

All a., b. and c. are correct

Passage

Direction: Study the picture carefully and answer the question

Image Shows the Instrument

Question 1025 (1 of 3 Based on Passage)

Question

MCQ▾

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 1026 (2 of 3 Based on Passage)

Question

MCQ▾

The instrument shown in the picture is a

Choices

Choice (4)Response

a.

Megaphone

b.

Trumpet

c.

Stethoscope

d.

Horn

Question 1027 (3 of 3 Based on Passage)

Question

MCQ▾

The function of the instrument given in the picture is to

Choices

Choice (4)Response

a.

Produce mixture of several frequencies

b.

Convert sound waves into electrical signals

c.

Amplify and direct the voice

d.

Echo the voice

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