NEET questions
18092 published questions with worked solutions.
- From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes through the centre is cut. What is the moment...
- The magnetic susceptibility is negative for:Not in JEE Advanced syllabus
- A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15 m s ^ -1 . Then, the...
- In a diffraction pattern due to a single slit of width 'a', the first minimum is observed at an angle 30^ when light of...
- At what height from the surface of earth the gravitation potential and the value of g are -5.4 10^7 J kg ^ -2 and 6.0 m s ^ -2...
- Out of the following options which one can be used to produce a propagating electromagnetic wave?
- Two identical charged spheres suspended from a common point by two massless strings of lengths l, are initially at a distance d...
- A uniform rope of length L and mass m_1, hangs vertically from a rigid support. A block of mass m_2 is attached to the free end...
- A refrigerator works between 4^ C and 30^ C . It is required to remove 600 calories of heat every second in order to keep the...
- An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50...
- A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U_1, at...
- Coefficient of linear expansion of brass and steel rods are _1 and _2. Lengths of brass and steel rods are l_1 and l_2...
- A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes...
- An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is:
- A disk and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which...
- The angle of incidence for a ray of light at a refracting surface of a prism is 45^ . The angle of prism is 60^ . If the ray...
- The molecules of a given mass of a gas have r.m.s velocity of 200 m s ^ -1 at 27^ C and 1.0 10^5 N m ^ -2 pressure. When the...
- A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The...
- A particle moves so that its position vector is given by r = t , x + t , y . Where is a constant. Which of the following is true?
- What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop?