The number of significant figures in the length of a bar 6200mm measured by meter rod is_______________?
A. 4 B. 3 C. 2 D. None of these
Physics MCQs with Answers
The number 76.85 is rounded off up to two significant figures as_____________?
A. 76.8 B. 77 C. 76.9 D. None of these
Which of the following is not a correct representation method for prefixes______________?
A. 1mm B. 10km C. 1000um D. Both A and B
The rotational K.E of the hoop is equal to the______________?
A. its translational K.E B. half than its translational K.E C. double than its translational K.E D. four times than its translational K.E
A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?
A. K.E hoop = K.E disc B. K.E hoop = 2K.E disc C. K.E hoop = 1/2K.E disc D. K.E hoop = 4K.E disc
The critical speed of an artificial satellite is_______________?
A. 8 Kms-1 B. 8.1 Kms-1 C. 7.9 Kms-1 D. 8 ms-1
Geostationary satellite completes one rotation around the earth in_______________?
A. 3 hours B. 6 hours C. 12 hours D. 24 hours
The radius of geostationary orbit from the centre of the earth is nearly______________?
A. 42000km B. 36000km C. 24000 km D. 18000 km
According to Einstein, the gravitational interaction is possible between_______________?
A. material objects only B. material objects and electromagnetic radiation only C. electromagnetic radiations D. none of the above
One radian is equal to______________?
A. 67.3° B. 57.3° C. 87.3° D. 60°