BCE2012

Two cells when connected in series are balanced on 8m on a potentiometer.

Two cells when connected in series are balanced on 8m on a potentiometer. If the cells are connected with polarities…

If the series limit of Lyman series for hydrogen atom is equal to the series limit

If the series limit of Lyman series for hydrogen atom is equal to the series limit of Balmer series for…

If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is,

If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is, when…

The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source,

The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source, then…

A galvanometer having resistance of 50 Ω requires a current of 100μA to give full

A galvanometer having resistance of 50 Ω requires a current of 100μA to give full scale deflection. How much resistance…

Two thin lenses when placed in contact, then the power of combination is +10 D.

Two thin lenses when placed in contact, then the power of combination is +10 D. If they are kept 0.25…

If the focal length of a concave mirror is 50 cm, then where should the object

If the focal length of a concave mirror is 50 cm, then where should the object is placed, so that…

If a nucleus ᴢXᴬ emits 9α and 5β-particles, then the ratio of total protons and neutrons

If a nucleus ᴢXᴬ emits 9α and 5β-particles, then the ratio of total protons and neutrons in the final nucleus…

In Young’s double slit experiment, the fringe width is 1×10⁻⁴ m, if the distance

In Young's double slit experiment, the fringe width is 1x10⁻⁴ m, if the distance between the slit and screen is…