The ionization energy of Li⁺⁺ is equal to
The ionization energy of Li⁺⁺ is equal to Options (a) 9hcR (b) 6hcR (c) 2hcR (d) hcR Correct Answer: 9hcR…
7 years ago
KA2007
The volume of a nucleus is directly proportional to
The volume of a nucleus is directly proportional to Options (a) A (b) A³ (c) √A (d) A¹/₃ Correct Answer:…
7 years ago
In Raman effect, Stoke’s lines are spectral lines having
In Raman effect, Stoke's lines are spectral lines having Options (a) frequency greater than that of the original line (b)…
7 years ago
An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source 200V,…
7 years ago
Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively and resistance 8 Ω…
7 years ago
A circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
A circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane. The magnetic field…
7 years ago
A current of 5 A is passing through a metallic wire of cross-sectional area 4×10⁻⁶ m².
A current of 5 A is passing through a metallic wire of cross-sectional area 4x10⁻⁶ m². If the density of…
7 years ago
Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they
Electrons in a certain energy level n=n₁, can emit 3 spectral lines. When they are in another energy level, n=n₂.…
7 years ago
During an adiabatic process, the cube of the pressure is found to be inversely
During an adiabatic process, the cube of the pressure is found to be inversely proportional to the fourth power of…
7 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…
7 years ago