'मारने को तत्पर होना'

Which of the following is a reason for excessive current in electrical circuits?

I. Direct touching of wires

The wavelength produced by a He-Ne laser corresponds to the transition in:

Which of the following is not a nuclear reaction?

Which law is violated if two bodies in mutual gravitational interaction exert unequal forces on each other?

Planck’s constant has dimensions equivalent to which of the following?

Which of the following optical phenomena CANNOT convert unpolarised light to plane polarised light?

A parallel plate capacitor is half-filled with a dielectric slab (K = 4). What is its effective capacitance, assuming plate separation d?