Communication System-Bandwidth of Signals (NEET Physics): Questions 1 - 3 of 3

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Question number: 1

» Communication System » Bandwidth of Signals

MCQ▾

Question

What is the function of a screw gauge in the experiment of determining Young’s modulus of a wire?

Choices

Choice (4) Response

a.

It measures the length of the wire.

b.

It measures the diameter of the wire.

c.

It measures the extension in the wire.

d.

It measures the load applied.

Question number: 2

» Communication System » Bandwidth of Signals

MCQ▾

Question

In an experiment for measurement of young’s modulus, following readings are taken. Load = 3.00 kg, length = 2.820 m, diameter - 0.041 cm and extension = 0.87. Determine the percentage error in the measurement of Y.

Choices

Choice (4) Response

a.

+ 15%

b.

+ 6.5%

c.

+ 5%

d.

+ 5.5%

Passage

Read the passage given below and answer the questions that follow:

The electron density of a layer of ionosphere at a height 150 km from the earth’s surface is 9 ⨯ 10 9 per m 3. For the sky transmission from this layer up to a range of 250 km,

Question number: 3 (1 of 1 Based on Passage) Show Passage

» Communication System » Bandwidth of Signals

MCQ▾

Question

Maximum usable frequency is,

Choices

Choice (4) Response

a.

3.5 Hz

b.

3.5 ⨯ 10 6 HZ

c.

3.5 ⨯ 10 10 Hz

d.

3.5 ⨯ 10 3 Hz

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