MCQs: Consider the following statements with respect to the Thermionic emission:
1. It is caused by electrons or ions that break loose from the metal surface due to heat energy
2. A metal cannot emit thermions at all temperatures
Which among the above statements is / are correct ?
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MCQs: In which of the following respects, the ultra-violet radiations are similar to white light?
1: Both obey the laws of reflection and refraction
2: Both travel with same speed in vacuum
3: Both are equally active chemically
4 :Both are scattered equally
Select the correct option from the codes given below:
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MCQs: Consider the following statements:
1: Speed of sound increases with increase in density of the medium
2: Speed of sound increases with increase in temperature of the medium
Which of the above statements is/are correct?
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MCQs: 1 femto metre is equal to how many metres?
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MCQs: Linear momentum can be described in which of the following units?
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MCQs: In recent times, the Optical fibres have become popular for usage in data transmissions. What advantages is / are offered by the Optical Fibres?
1: Transmission via optical fibres is immune to electromagnetic interference
2: Optical fibres can transmit data at a faster speed in comparison to metals
Select the correct option from the codes given below:
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MCQs: Who gave the Theory of Relativity?
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MCQs: Which of the following is correct about the properties of Gravitational Forces?
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MCQs: The branch of mechanics which deals with the study of motion of material objects without taking into account the factors which cause motion is called as:
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MCQs: The motion of an object under free fall is an example of which of the following?
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MCQs: What is the angular acceleration of a body moving with constant angular velocity?
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MCQs: Which of the following is NOT correct about Vectors addition?
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MCQs: The forces acting at a point are called as:
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MCQs: The Newton’s third law is applicable when:
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MCQs: Angle of friction is _______:
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MCQs: Which of the following is NOT a conservative force?
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MCQs: 1 electron volt of energy is equal to ____?
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MCQs: Which of the following is/are correct about Kinetic energy?
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MCQs: What will be the work done in holding a 25 kg iron plate for 25 seconds?
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MCQs: As per the Kepler’s third law, the square of the time period of revolution of a planet is directly proportional to which of the following?
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