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Q.1: In multiplication and division of measurement——-?
- Percentage uncertainties are added
- Absolute uncertainties are added
- Percentage uncertainties are divided
- Absolute uncertainties are divided
A
Q.2: The number of significant figures in 5.400 is——–?
- 3
- 5
- 2
- None
D
Q.3: To reduce the uncertainty in the timing experiment——-?
- Highly precise instrument
- Conduct at room temperature
- Count number of vibration
- Both a and C
D
Q.4: The number of significant figures in the length of a bar 6200mm measured by meter rod is——–?
- 4
- 3
- 2
- None of these
A
Q.5: The number 76.85 is rounded off up to two significant figures as——-?
- 76.8
- 77
- 76.9
- None of these
B
Q.6: Which of the following is not a correct representation method for prefixes——-?
- 1mm
- 10km
- 1000um
- Both A and B
C
Q.7: The rotational K.E of the hoop is equal to the——-?
- its translational K.E
- half than its translational K.E
- double than its translational K.E
- four times than its translational K.E
A
Q.8: A hoop and disc have same mass and radius. Their rotational K.E are related by an equation——-?
- K.E hoop = K.E disc
- K.E hoop = 2K.E disc
- K.E hoop = 1/2K.E disc
- K.E hoop = 4K.E disc
B
Q.9: The critical speed of an artificial satellite is——–?
- 8 Kms-1
- 8.1 Kms-1
- 7.9 Kms-1
- 8 ms-1
C
Q.10: Geostationary satellite completes one rotation around the earth in——–?
- 3 hours
- 6 hours
- 12 hours
- 24 hours
D