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• Weight refers to the force exerted on a body by gravity while Mass refers to the amount of matter in a substance. • The Earth's Moon has considerably less mass than the Earth itself. • Not only is the Moon smaller than the Earth, but it is only about 60 per cent as dense as Earth. • Thus, the gravitational attraction on the Moon is only one-sixth that of the Earth. Hence option 4 is the correct answer. • As the force gravity exerts on a person determines the weight of a person. • A person's weight is generally one-sixth less than their weight on Earth. • One thing to note here is that it is only the value of weight that changes from Earth to the moon, while the mass remains the same.
In a concave mirror which of the following pair of position of object – size of the image is correct?
I. At infinity – point sized
Hyperrnetropia or longsight can be corrected by using :
Which of the following correctly ranks molecular speeds at a fixed temperature?
Why does a lemon appear larger when viewed from the side of a glass of water?
A 10 μF capacitor is charged to 50 V and then connected across an uncharged 20 μF capacitor. What is the final potential difference across both capac...
Which law states that "the rate of heat loss of a body is directly proportional to the temperature difference between the body and its surroundings"?
Which gate gives a high output only when both inputs are low?
Parsec is the unit of
The amount of light entering in eye is controlled by:
An electron and a proton are accelerated by the same potential difference. Which one has a longer de Broglie wavelength?
