List of top Questions asked in MET

0.01 M solution of KCl and CaCl\(_2\) are prepared in water. The freezing point of KCl is found to be \(-2^{\circ}C\). What is the freezing point of CaCl\(_2\) (assumed to be completely ionised)?
A red flower kept in green light will appear
In interference pattern, the energy is
A diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy?
The maximum current that can flow in the fuse wire before it blows out, varies with the radius \(r\) as
The ratio of the speed of an object to the speed of its real image of magnification \(m\) of a convex mirror is
The wavelength of the \(K_\alpha\) line for an element of atomic number 43 is \(\lambda\). Then the wavelength of the \(K_\alpha\) line for an element of atomic number 29 is
Ice starts freezing in a lake with water at 0°C when the atmospheric temperature is –10°C. If the time taken for 1 cm of ice to be formed is 12 min, the time taken for the thickness of the ice to change from 1 to 2 cm will be
A train of 150 m length is going towards north direction at a speed of 10 m/s. A parrot flies at a speed of 5 m/s towards south direction parallel to the railway track. The time taken by the parrot to cross the train is equal to
For a particle executing simple harmonic motion, the kinetic energy \(k\) is given by \(k = k_0 \cos^2 \omega t\). The maximum value of potential energy is
When a force \(F_1\) acts on a particle, frequency is 6 Hz and when a force \(F_2\) acts, frequency is 8 Hz. What is the frequency when both the forces act simultaneously in same direction?
The speed with which the earth have to rotate on its axis so that a person on the equator would weigh \((3/5)^{\text{th}\) as much as present. (Radius of earth = 6400 km)}
Two spheres of equal masses, one of which is a thin spherical shell and the other a solid, have the same moment of inertia about their respective diameters. The ratio of their radii will be
A man crosses a 320 m wide river perpendicular to the current in 4 min. If in still water he can swim with a speed 5/3 times that of the current, then the speed of the current, in m/min is
The correct relation between \(\alpha\) and \(\beta\) in a transistor is
Position of a body with acceleration \(\alpha\) is given by \(x = k \alpha^m t^n\), here \(t\) is time. Find the dimension of \(m\) and \(n\)
For a body moving with relativistic speed if the velocity is doubled, then
Due to a force of \((6\hat{i} + 2\hat{j})\ \text{N\) the displacement of a body is \((3\hat{i} - \hat{j})\ \text{m}\), then the work done is}
The plano-convex lens of focal length \(20\ \text{cm}\) and \(30\ \text{cm}\) are placed together to form a double convex lens, the final focal length will be
Angular momentum is conserved
An object is placed at a distance \(20\ \text{cm}\) from the pole of a convex mirror of focal length \(20\ \text{cm}\). The image is produced at
In a capillary tube, water rises to \(3\ \text{mm}\). The height of water that will rise in another capillary tube having one-third radius of the first is
The Bulk Modulus for an incompressible liquid is
A body weighs \(500\ \text{N}\) on the surface of the earth. How much would it weigh half way below the surface of the earth?
The moment of inertia of a disc of mass \(m\) and radius \(R\) about an axis, which is tangential to the circumference of the disc and parallel to its diameter is