In case of linearly polarised light, the magnitude of the electric field vector
In case of linearly polarised light, the magnitude of the electric field vector Options (a) does not change with time…
6 years ago
Questions
A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series with a…
6 years ago
A device which converts electrical energy into mechanical energy is
A device which converts electrical energy into mechanical energy is Options (a) Electric motor (b) Induction coil (c) Dynamo (d)…
6 years ago
The energy of groundstate (n=1) of hydrogen level is -13.6 eV. The ionistation
The energy of groundstate (n=1) of hydrogen level is -13.6 eV. The ionistation potential of the hydrogen atom is Options…
6 years ago
A and B are two metals with threshold frequencies 1.8 x 10¹⁴ Hz and 2.2 x 10¹⁴ Hz.
A and B are two metals with threshold frequencies 1.8 x 10¹⁴ Hz and 2.2 x 10¹⁴ Hz. Two identical…
6 years ago
An electron is
An electron is Options (a) Hardon (b) Baryon (c) a nucleon (d) a lepton Correct Answer: a leptonExplanation:No explanation available.…
6 years ago
A certain current on passing through a galvanometer produces a deflection
A certain current on passing through a galvanometer produces a deflection of 100 divisions. When a shunt of one ohm…
6 years ago
A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by
A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by another wire…
6 years ago
₆C¹⁴ absorbs an energitic neutron and emits beta particles. The resulting nucleus is
₆C¹⁴ absorbs an energitic neutron and emits beta particles. The resulting nucleus is Options (a) ₇N¹⁴ (b) ₇N¹³ (c) ₅B¹³…
6 years ago
A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
A step down transformer is used on a 1000 V line to deliver 20 A at 120 V at the…
6 years ago