The correct answer is C
The correct option, if speeds of gamma rays, X-rays and microwave are Vg, Vx an Vm respectively will be
An object is placed at a distance of 10 cm in front of a double convex lens made of glass of refractive index 1.5. Both the radii of curvature of the le...
A sound with a single frequency is called a:
The sharpness of a television image is termed as its –
A meter stick moves along its length with a certain speed. The apparent length of the moving meter stick as measured by a stationary observer on the gr...
The base of an electric iron is brightly polished mainly -
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then...
A spherical ball made of steel when dropped in mercury container will –
Which of the following optical phenomena CANNOT convert unpolarised light to plane polarised light?
Clear nights are colder than cloudy nights because of –
