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)…
8 years ago
Physics
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…
8 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…
8 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.…
8 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…
8 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…
8 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…
8 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…
8 years ago
The dimensions of pressure are equal to those of
The dimensions of pressure are equal to those of Options (a) Force per unit volume (b) Energy per unit volume…
8 years ago
Planck’s constant has same dimensions as those of
Planck's constant has same dimensions as those of Options (a) Angular momentum (b) Linear momentum (c) Work (d) Coefficient of…
8 years ago