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From the following select the type of friction?Anonymous voting
- Static friction
- Kinetic friction
- potential friction
- both a & b
Consider a pulley attached with two masses m₁ and m₂ and m₂>m₁ then what is the acceleration as shown in diagram(0522)Anonymous voting
- a=(m₂-m₁/m₁+m₂)g
- a=(m₂-m₁/m₁+m₂)2g
- a=(m₂/m₁+m₂)g
- a=(m₁/m₁+m₂)g
In physics, the string we used is always has which property?Anonymous voting
- Massless
- Inextensible
- stretched
- Both a & b
today's quiz is from Class 11 Physics >> Laws of motion >> Motion of connected bodies (questions)
What is the mean length of the rope if the measured length values are, 3.46m,3.48m, and 3.50m?Anonymous voting
- 3.48 m
- 3.4m
- 34.8 m
- 34 m
If the length of the steel rod is measured in the first experiment was 0.48m and in the second experiment, the length of the steel rod again measured which was 0.47. what is the mean value of the length of the steel rod?Anonymous voting
- 1.47 m
- 0.47 m
- 4.7 m
- 14.7 m
The length of the string measured in an experiment was found to be 1.48m, 1.46m, 1.50m, and 1.44m. What is the average length of the string?Anonymous voting
- 1.47 m
- 14.7 m
- 0.147 m
- 147 kg
what is the mean of the lengths 2m,4m,6m,8m, and 10m of the copper wire?Anonymous voting
- 6 m
- 7 m
- 8 m
- 9 m
The error can be found by?Anonymous voting
- true value- measured value
- measured value-True value
- (true value- measured value)/ 100
- (true value- measured value)x 101
Class 11 Physics >> Units and Measurement >> Measurement (questions)
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What is the mass of the black hole if the distance from its center to the horizon is 16km? if the escape velocity of the black hole at the horizon is 3x10⁸ m /s.Anonymous voting
- 21.58x10³⁰ kg
- 18.75x10³⁰ kg
- 2.158x10³ kg
- 2158x10³⁰ kg
