C and Si both have same lattice strcture, having 4 bonding electron in each
C and Si both have same lattice strcture, having 4 bonding electron in each. However, C is insulator whereas Si…
6 years ago
AIPMT2012
Monochromatic radiation emitted when electron on hydrogen atom
Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a phototsensitive material.…
6 years ago
A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm. Assuming it to be 25% efficient in…
6 years ago
If voltage across a bulb rated 220 volt-100 Watt drops by 2.5% of its rated value
If voltage across a bulb rated 220 volt-100 Watt drops by 2.5% of its rated value, the percentage of the…
6 years ago
If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius of ⁶⁴Cu in Fermi is: Options…
6 years ago
Electron in hydrogen atom first jumps from third excited state to second excited
Electron in hydrogen atom first jumps from third excited state to second excited state and then from second excited to…
6 years ago
An electron of a stationary hydrogen atom passes from the fifth energy level to
An electron of a stationary hydrogen atom passes from the fifth energy level to the ground level. The velocity that…
6 years ago
In an electrical circuit R,L,C and an AC voltage source are all connected in series.
In an electrical circuit R,L,C and an AC voltage source are all connected in series. When L is removed from…
6 years ago
An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic field of 0.25…
6 years ago
Two spheres A and B of masses m and m respectively collide. A is at rest initially
Two spheres A and B of masses m1 and m2 respectively collide. A is at rest initially and B is…
6 years ago