Physics and Measurement [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 38 - 43 of 278

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Question 38

Question MCQ▾

A physical parameter a can be determined by measuring the parameters b, c, d and e using the relation a =

If the maximum errors in the measurement of b, c, d and e are b1 % , c1 % , d1 % , and e1 % , then the maximum error in the value of a determined by the experiment is

Choices

Choice (4)Response

a.

(b1 + c1 - d1 - e1) %

b.

(b1 + c1 + d1 + e1) %

c.

(b1 + c1 + d1 + e1) %

d.

(b1 + c1 - d1 - e1) %

Edit

Question 39

Question MCQ▾

If L = 2.331 cm, B = 2.1 cm, then L + B =

Choices

Choice (4)Response

a.

4,43 cm

b.

4.431 cm

c.

4 cm

d.

4.4 cm

Edit

Question 40

Question MCQ▾

In an experiment, the following observations were recorded: L = 2.820 m, M = 3.00 kg, l = 0.087 cm, Diameter D = 0.041 cm. Taking g = 9.81 m/s2 using the formula, Y =

, the maximum percentage error in Y is

Choices

Choice (4)Response

a.

6.50%

b.

8.42%

c.

4.56%

d.

7.96%

Edit

Passage

The internal radius of a 1 m long resonance tube is measured as 3 cm. A tuning fork of frequency 3500Hz is used. The first resonating length is measured as 14.6 cm and the second resonating length is measured as 24.0 cm.

Question 41 (1 of 2 Based on Passage)

Question MCQ▾

Calculate the speed of sound at the room temperature

Choices

Choice (4)Response

a.

276 m/s

b.

675 m/s

c.

658 m/s

d.

930 m/s

Edit

Question 42 (2 of 2 Based on Passage)

Question MCQ▾

Calculate the end correction.

Choices

Choice (4)Response

a.

9.2 cm

b.

9.1 cm

c.

9.4 cm

d.

9.9 cm

Edit

Question 43

Question Assertion-Reason▾

Assertion(Ꭺ)

Number of significant figures in 0.005 is one and that in 0.500 is three.

Reason(Ꭱ)

This is because zero is not significant.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Edit