List of top Physics Questions

Irrespective of the position of the object on the principal axis, a concave lens always forms an image of nature
Usually Doctors, after testing for defects of vision, prescribe the corrective lens indicating their
Farsightedness is called
Relationship among the speed of light wave (v), wavelength (λ) and frequency (f) is given by
Which of the following statements on red colour light is true?
Blue colour of the sky is due to the scattering of light by the molecules of
If \(i_ 1\) and \(i _2\) are the angle of incidence and angle of emergence due to a prism respectively, then at the angle of minimum deviation
The minimum focal length of the eye-lens of a healthy human being is
Volt per ampere is called
The device which maintains a constant potential difference between its ends is called
Two resistors of 0·4 Ω and 0·6 Ω are connected in parallel combination. Their equivalent resistance is
The junction law proposed by Kirchhoff is based on
The materials which have large number of free electrons and offer low resistance are called
A fuse is made up of
If the specific resistance of a wire of length 2 m and area of cross-section 1 mm2 is 10–8 Ω-m, then calculate the resistance.
An evidence for the motion of charge in the atmosphere is provided by
The electric energy (in kWh) consumed in operating a bulb of 60 W for 10 hours a day is
The scientific demonstration of H.C. Oersted is related to the study of
Pick the correct answer from the following two statements :
(a) Within a bar magnet, magnetic field lines travel from south pole to north pole.
(b) Outside bar magnet, magnetic field lines travel from north pole to south pole.
Weber is the S.I. unit of
The magnetic force acting on a straight wire of length l carrying a current I which is placed perpendicular to the uniform magnetic field B is
Mechanical energy is converted into electrical energy in
The device which contains slip rings to reverse the direction of current through coil is called
An increase in magnetic flux through a coil of 500 turns in 0·1 s is 0·001 Wb. The maximum induced EMF generated in the coil is
If ε and ∆t are the induced EMF and time respectively, then the change in magnetic flux is given by