Physics and MeasurementErrors in Measurement (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 6  11 of 29
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Question number: 6
» Physics and Measurement » Errors in Measurement
Question
The length of a cylinder is measured with a meter rod having least count 0.1 cm. Its diameter is measured with Vernier calipers having least count 0.01 cm. Given that length is 5.0 cm. and radius is 2.0 cm. The percentage error in the calculated value of the volume will be
Choices
Choice (4)  Response  

a.  4% 

b.  1 % 

c.  2% 

d.  3% 

Question number: 7
» Physics and Measurement » Errors in Measurement
Question
According to Joule’s law of heating, heat produced H = I ^{2} Rt, where I is current, R is resistance and t is time. If the errors in the measurements of I, R, and t. are 3%, 4 % and 6 % respectively then error in the measurement of H is
Choices
Choice (4)  Response  

a.  17 % 

b.  25% 

c.  16% 

d.  19% 

Question number: 8
» Physics and Measurement » Errors in Measurement
Question
Error in the measurement of radius of a cylinder is 4%. The error in the calculated value of its volume is
Choices
Choice (4)  Response  

a.  8% 

b.  5% 

c.  3% 

d.  7% 

Question number: 9
» Physics and Measurement » Errors in Measurement
Question
Error in the measurement of radius of a sphere is 1%. The error in the calculated value of its volume is
Choices
Choice (4)  Response  

a.  3 % 

b.  5% 

c.  7% 

d.  1 % 

Question number: 10
» Physics and Measurement » Errors in Measurement
Question
A thin copper wire of length/metre increases in length by 2 % when heated through 10°C. Which is not the percentage increase in area when a square copper sheet of length/metre is heated through 10°C?
Choices
Choice (4)  Response  

a.  14% 

b.  16% 

c.  12% 

d.  4% 

Passage
The internal radius of a 1 m long resonance tube is measured as 3 cm. A tuning fork of frequency 2000 Hz is used. The first resonating length is measured as 4.6 cm and the second resonating length is measured as 14.0 cm.
Question number: 11 (1 of 3 Based on Passage) Show Passage
» Physics and Measurement » Errors in Measurement
Question
Calculate the speed of sound at the room temperature.
Choices
Choice (4)  Response  

a.  275 m/s 

b.  330 m/s 

c.  376 m/s 

d.  356 m/s 
