A parallel beam of light is to be obtained from the headl...
A parallel beam of light is to be obtained from the headlamp ofa car. At which of the following positions should the source of light be placed from the pole of its spherical minor?
At the focal point
At the centre of curvature
Beyond the centre of curvature
Between the focal point and the pole
Between the focal point and the center of curvature
Correct answer is A
No explanation has been provided for this answer.
Humidity is used to describe the amount of ...
The graph of density against temperature for water is correctly illustrated by ...
Which of the following is an essential physical property of the wires used for making fuses? ...
As an object is moved close to the focus of a converging lens from infinity its image I. moves cl...
In the diagram above, the direction of the force between N and S in the magnetic field is ...
The electrolyte used in the Nickel-Iron (NiFe) accumulator is ...