Physics-
General
Easy
Question
For a real gas (van der Waal’s gas)
- Boyle temperature is
- Critical temperature is
- Triple temperature is
- Inversion temperature is
The correct answer is: Critical temperature is
For a real gas the two van der Waal’s constants and Boyle’s temperature (
) are related as
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Two radioactive sources 
and 
of half lives 1h and 2h respectively initially contain the same number of radioactive atoms. At the end of two hours, their rates of disintegration are in the ratio of
Two radioactive sources and of half lives 1h and 2h respectively initially contain the same number of radioactive atoms. At the end of two hours, their rates of disintegration are in the ratio of
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The count rate for 10g of radioactive material was measured at different times and this has been shown in figure with scale given. The half-life of the material and the total count in the first half value period, respectively are
The count rate for 10g of radioactive material was measured at different times and this has been shown in figure with scale given. The half-life of the material and the total count in the first half value period, respectively are
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then
then
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Neutron decay in free space is given as follows 
Then the parenthesis represents a
Neutron decay in free space is given as follows Then the parenthesis represents a
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The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that
The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that
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In extrinsic semiconductors
In extrinsic semiconductors
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A Ge specimen is doped with Al. The concentration of acceptor atoms is 
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A Ge specimen is doped with Al. The concentration of acceptor atoms is 1021 atoms/m3. Given that the intrinsic concentration of electron hole pairs is , the concentration of electrons in the specimen is
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The valence band and conduction band of a solid overlap at low temperature, the solid may be
The valence band and conduction band of a solid overlap at low temperature, the solid may be
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In a P-type semiconductor, germanium is doped with
In a P-type semiconductor, germanium is doped with
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The impurity atom added to germanium to make it N-type semiconductor is
The impurity atom added to germanium to make it N-type semiconductor is
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If 
and 
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If and be the numbers of holes and conduction electrons in an extrinsic semiconductor, then
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When Ge crystals are doped with phosphorus atom, then it becomes
When Ge crystals are doped with phosphorus atom, then it becomes
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A piece of copper and the other of germanium are cooled from the room temperature to 80 K, then which of the following would be a correct statement
A piece of copper and the other of germanium are cooled from the room temperature to 80 K, then which of the following would be a correct statement
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Bonding in a germanium crystal (semi- conductor) is
Bonding in a germanium crystal (semi- conductor) is
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What is the coordination number of sodium ions in the case of sodium chloride structure
What is the coordination number of sodium ions in the case of sodium chloride structure
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