The term liquid crystal refers to a state that is intermediate between
The term liquid crystal refers to a state that is intermediate between Options (a) Crystalline solid and amorphous liquid (b)…
6 years ago
KA2006
In a transistor the collector current is always less than the emitter current
In a transistor the collector current is always less than the emitter current because Options (a) Collector side is reverse…
6 years ago
Maximum velocity of the photoelectrons emitted by a metal surface is 1.2×10⁶ ms⁻¹.
Maximum velocity of the photoelectrons emitted by a metal surface is 1.2x10⁶ ms⁻¹. Assuming the specific charge of the electron…
6 years ago
When light of wavelength 300 nm falls on a photoelectric emitter,
When light of wavelength 300 nm falls on a photoelectric emitter, photoelectrons are liberated. For another emitter, light of wavelength…
6 years ago
The electron drift speed is small and the change of the electron is also small
The electron drift speed is small and the change of the electron is also small but still, we obtain large…
6 years ago
If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen series respectively, then the…
6 years ago
In a LCR series circuit, the potential difference between the terminals of the inductor
In a LCR series circuit, the potential difference between the terminals of the inductor is 60 V, between the terminals…
6 years ago
Activity of a radioactive sample decreases to (1/3)rd of its original value
Activity of a radioactive sample decreases to (1/3)rd of its original value in 3 days. Then, in 9 days its…
6 years ago
A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor.
A battery of emf 10 V and internal resistance 3 ohm is connected to a resistor. The current in the…
6 years ago
A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat
A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat to a sink at 27⁰C. Its efficiency…
6 years ago