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Double fertilization in plants is a unique process where two different nuclei in the ovule are fertilized simultaneously, leading to the formation of both the embryo and endosperm.
Which of the following statement is correct?
I. The incident ray, the normal at the point of incidence and the reflected ray all lie in the sa...
A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?
The image of an object formed on the retina of the eye is -
A stone thrown upward with a speed ’u’ from the top of the tower reaches the ground with a speed ‘3u’. The height of the tower is-
Which of the following rays are not deflected by a magnetic field?
The pitch of a sound is primarily determined by which of the following?
A constant retarding force of 20 N is applied to a body of mass 10 kg moving initially with a speed of 12 m s–1. How long does the body tak...
What would happen to the weight of a body in a lift moving upward with uniform speed?
The ozone hole that has been detected lies in the atmosphere above –
A sudden drop in barometric pressure indicates which of the following?
