General Science

Q2261.The Earth travels in its orbit at a speed of approx. 4,400 km per hour. Why do we not feel this high speed?

Q2262.If the gravitational force of the Earth suddenly disappears, which are of the following will be the correct consequence?

Q2263.An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth

Q2264.A Geosynchronous satellite continuously active in its orbit due to centrifugal force which is obtained by

Q2265.Satellite is kept moving in its orbit around the Earth; it is due to

Q2266.The known forces of nature can be divided into four classes, viz., gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them which one of the following statements is not correct?

Q2267.If a person sitting in a lift, then when will he feel that his weight gets increased?

Q2268.A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because

Q2269.The time period of a pendulum

Q2270.Why do pendulum checks usually lose time in summer?

Q2271.A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will

Q2272.A pendulum clock can run faster in

Q2273.Earth’s escape velocity is

Q2274.What will happen if an object is thrown into space with the speed of 8 km/s?

Q2275.There is no atmosphere on the Moon because

Q2276.The variation of displacement d with time t in the case of a particle falling freely under gravity from rest is correctly shown in the graph.

Q2277.A smooth plane inclined at an angle q with the horizontal as shown in the given figure. A body starts from rest and slides down on the inclined surface. The time taken by the body to reach the bottom is

Q2278.Assertion (A): The weight of human being on the Moon is1/6 in comparison to Earth. Reason (R): The Moon does not have gravity like Earth. Select the answer from following codes.

Q2279.Which of the following pairs is correctly matched? List-I (a) Radium (b) Penicillin (c) X-ray (d) Smallpox List-II 1. Alexander Fleming 2. Madam Curie 3. Edward Jenner 4. W.K. Roentgen Code (a) (b) (c) (d)

Q2280.Consider the following statements. A Simple Pendulum is set into oscillation. Then, 1. the acceleration is zero when the bob passes through the mean position. 2. in each cycle the bob attains a given velocity twice. 3. both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation. 4. the amplitude of oscillation of the simple pendulum decreases with time. Which of these statements are correct?