Thermodynamics

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to: Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:

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The heating effect of current alone The heating effect of current alone
Hysteresis loss alone Hysteresis loss alone

100 is formed by? 100 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

It is easier to roll a stone up a sloping road than to lift it vertical upwards because It is easier to roll a stone up a sloping road than to lift it vertical upwards because

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Work done in rolling is more than in lifting.
Work done in lifting the stone is equal to rolling it.

Which state Hyderabad belongs to Which state Hyderabad belongs to

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Which state Hyderabad belongs to Which state Hyderabad belongs to

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Which state Hyderabad belongs to Which state Hyderabad belongs to

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Which of the following terms is not used in the field of physics? Which of the following terms is not used in the field of physics?

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Latent heat Latent heat
Stock value Stock value

102 is formed by? 102 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

104 is formed by? 104 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

101 is formed by? 101 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

Radiocarbon is produced in the atmosphere as a result of Radiocarbon is produced in the atmosphere as a result of

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Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
Action of ultraviolet light from the sun on atmospheric oxygen.

Which state Hyderabad belongs to Which state Hyderabad belongs to

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Which state Hyderabad belongs to Which state Hyderabad belongs to

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Which state Hyderabad belongs to Which state Hyderabad belongs to

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The absorption of ink by blotting paper involves: The absorption of ink by blotting paper involves:

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Viscosity of ink Viscosity of ink
Capillary action phenomenon Capillary action phenomenon

103 is formed by? 103 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

Siphon will fail to work if: Siphon will fail to work if:

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The densities of the liquid in the two vessels are equal.
The level of the liquid in the two vessels are at the same height.

105 is formed by? 105 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

Nuclear sizes are expressed in a unit named Nuclear sizes are expressed in a unit named

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Fermi Fermi
Angstrom Angstrom

106 is formed by? 106 is formed by?

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50+50 50+50
10x50 10x50
70+30 70+30
70+50 70+50

Thermodynamics : Question 1 of 20

Thermodynamics

Summary