NEET Physics: Questions 1883 - 1887 of 2099
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Question number: 1883
Question number: 1884
Question number: 1885
The speed of revolution of an artificial satellite revolving very near the earth is 8 kms -1.
Orbital velocity of a satellite, become independent of height of near satellite.
|a.||Ꭺ is true but Ꭱ is false|
|b.||Both Ꭺ and Ꭱ are false|
|c.||Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ|
|d.||Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ|
Question number: 1886
A source of sound of frequency 233 Hz is moving rapidly towards a wall with a velocity of 3.5 m/s. The speed of sound is 330 m/s. If the observer is between the wall and the source, then the beats heard per second will be,
Question number: 1887
Acceleration due to gravity on a planet is 10 times the value on the earth. Escape velocity for the planet and the earth are V p and V e respectively. Assuming that the radii of the planet and the earth are the same, then –