Consider the following statements in respect of a jet engine and a rocket:
1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space.
2. A rocket carries its own supply of oxygen in the gas form, and fuel.
Subject: Science and Technology
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Consider the following statements in respect of a jet engine and a rocket
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Which one of the following laser types is used in a laser printer
Which one of the following laser types is used in a laser printer?
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What are rubies and sapphires chemically known as
What are rubies and sapphires chemically known as?
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Which one of the following is also called Stranger Gas
Which one of the following is also called Stranger Gas?
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Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines
Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?
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Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively
Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?
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Assertion (A): Radio waves bend in a magnetic field.
Assertion (A): Radio waves bend in a magnetic field.
Reason (R): Radio waves are electromagnetic in nature. -
‘Hand-in-Hand 2007’, a joint anti-terrorism military training was held by the officers of the Indian Army and officers of the Army of which one of the following countries
‘Hand-in-Hand 2007’, a joint anti-terrorism military training was held by the officers of the Indian Army and officers of the Army of which one of the following countries?
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Assertion (A): In the visible spectrum of light, red light is more energetic than green light.
Assertion (A): In the visible spectrum of light, red light is more energetic than green light.
Reason (R): The wavelength of red light is more than that of green light. -
Assertion (A): In the human body, liver has an important role in fat digestion.
Assertion (A): In the human body, liver has an important role in fat digestion.
Reason (R): Liver produces two important fat-digesting enzymes.