A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s, perpendicular to a…
8 years ago
Physics
CO₂ laser uses
CO₂ laser uses Options (a) Microwaves (b) Infra red (c) Ultra violet (d) Visible light Correct Answer: Ultra violetExplanation:No explanation…
8 years ago
A photosensitive metallic surface has work function, hν₀. If photons of energy
A photosensitive metallic surface has work function, hν₀. If photons of energy 2hν₀ fall on this surface, the electrons come…
8 years ago
A galvanometer of 50 Ω resistance has 25 divisions. A current of 4×10⁻⁴ A gives
A galvanometer of 50 Ω resistance has 25 divisions. A current of 4x10⁻⁴ A gives a deflection of one division.…
8 years ago
A carbon film resistor has colour code green, black, violet, gold. The value
A carbon film resistor has colour code green, black, violet, gold. The value of the resistor is Options (a) 50Ω…
8 years ago
As per Bohr model, the minimum energy (in eV) required to remove an electron
As per Bohr model, the minimum energy (in eV) required to remove an electron from the ground state of doubly…
8 years ago
A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance
A series L-C-R circuit contains inductance 5 mH, capacitance 2 μF and resistance 10Ω. If a frequency AC source is…
8 years ago
A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH, while its effective…
8 years ago
Which two of the following five physical parameters have the same dimensions?
Which two of the following five physical parameters have the same dimensions? 1. energy density 2. refractive index 3. dielectric…
8 years ago
The unit of surface tension is
The unit of surface tension is Options (a) N/cm (b) N/cm² (c) N/cm³ (d) None of these Correct Answer: N/cmExplanation:No…
8 years ago