A body falls freely from the top of a tower. It covers 36% of the total height in the last second before striking the ground level , the height of the tower is a)50m b)75m c)100m d)125m
The power of exponent is dimensionless or not???
taniyath05
Asked:
December 2022
A body is dropped from a certain height h (h is very large) and second body is thrown downward with velocity of 5m/s simultaneously. What will be the difference in heights of the two bodies after 3s ? 1)5m 2)10m 3)15m 4)20m
taniyath05
Asked:
December 2022
The two ends of a train moving with constant acceleration pass a certain point with velocities u and 3u. The velocity with which the middle point of the train passes the same point is
taniyath05
Asked:
December 2022
The artificial satellite does not have any fuel, but even then it remains orbiting around the earth. Why?
taniyath05
Asked:
December 2022
20 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8 g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? a)60 b)84 c)75 d)96
taniyath05
Asked:
December 2022
The least count of a stop watch is 1/5 second. The time of 20 oscillations of a pendulum is measured to be 25 seconds. The maximum percentage error in the measurement of time will be 1)0.1% 2)0.8% 3)1.8% 4)8%