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) % |
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 |
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% |
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 |
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 |
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 |