Answers

Three cells each of e.m.f. 1.5v and an internal resistance of 1.0(Omega) are connected in parallel across a…

One of the properties of the earth’s magnetic field is that the A. north pole lies in the…

A sonometer wire of length 100cm under a tension of 10N, has a frequency of 250Hz. Keeping the…

In a resonance tube experiment, the effective length of the air column for the first resonance is 20cm…

An organic pipe closed at one end is 80cm long. Determine the frequency of the fundamental note assuming…

For a short sighted person, light rays from a point on a very distant object is focused A.…

When light is incident on an object which is magenta in colour, which of the following colour would…

A boy looks at the image of an object in a plane mirror. He observes two images, a…

What must be the distance between an object and a converging lens of focal length 20cm to produce…

Shadows and eclipses result from the A. refraction of light B. rectilinear propagation of light C. defraction of…