Subject: Physics, asked 2 hours, 37 minutes ago

## Two coils are connected in series in one gap of a meter bridge and the null point is obtained in the middle of wire by putting 7 omega in the other gap . Two coils are then connected in parallel and the null point is obtained again in the middle of the wire the resistance in the gap other gap is changed by 57omega.find the resistance of each coil?

Subject: Physics, asked 2 hours, 38 minutes ago

## in the potentiometer circuit shown the balance point is at x Q21. In the potentiometer circuit shown, the balance point is at x. State with reason, where the balance point will be shifted when,                                    (i) resistance R is increased, keeping all barometers unchanged.  (ii) resistance S is increased, keeping R constant  (iii) cell p is replaced by another cell whose emf is lower. Then that of all Q. in the potentiometer circuit shown the balance point is at x

Subject: Physics, asked 2 hours, 39 minutes ago

## a beam of light converges to a point p.draw a ray diagram to show where the beam will converge if a convex lens and a concave lens is kept in the path of the beam

Subject: Physics, asked 2 hours, 40 minutes ago

## The capacitance of a parallel plate capacitor formed by the circular plates of diameter of 4 cm is equal to the capacitance of a sphere of diameter 200cm. Find the distance between the two plates.

Subject: Physics, asked 2 hours, 41 minutes ago

## Draw energy level diagram for Hydrogen atom showing at least four lowest energy levels. Show the transitions responsible for emission of Balmer series

Subject: Physics, asked 2 hours, 42 minutes ago

## An electron jumps from third orbit to first orbit of hydrogen atom ; calculate the expression for change in angular momentum of electron.

Subject: Physics, asked 2 hours, 43 minutes ago

## A photon beam of energy 12.1eV is incident on a hydrogen atom. The orbit to which electron of H-atom be excited is

Subject: Physics, asked 2 hours, 45 minutes ago

## Derive an expression for energy stored (Potential energy) in a Dipole in a uniform electric field. (Electrostatics ).

Subject: Physics, asked 2 hours, 46 minutes ago

## Derive an expression for energy stored (Potential energy) in a Dipole in a uniform electric field. (Electrostatics ).

Subject: Physics, asked 2 hours, 46 minutes ago

## Derive an expression for energy stored (Potential energy) in a Dipole in a uniform electric field. (Electrostatics ).

Subject: Physics, asked 2 hours, 49 minutes ago

Subject: Physics, asked 2 hours, 53 minutes ago

## Ans pl fast

Subject: Physics, asked 3 hours, 2 minutes ago

## Why does the objective lens of a microscope have smaller aperture than the eye piece

Subject: Physics, asked 3 hours, 11 minutes ago

## please explain every subdivision clearly. HOW MANY TIMES SHOULD I REPLACE?

Subject: Physics, asked 3 hours, 12 minutes ago

## Can you pl answer explaining it

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