An astronomical telescope which is being used to view a v...
An astronomical telescope which is being used to view a very distant object is said to be in normal adjustment if
the final image is at the near-point
the image formed by the objective is before the focus of the eye piece
the angular magnification is the ratio of the focal length of the eye-piece lens to that of the objective
the foci dl the objective and the eye-piece coincide between the lenses
the distance between the objective lens and the eye-piece is equal to the difference between their focal lengths.
Correct answer is D
No explanation has been provided for this answer.
The heat produced in a conductor carrying an electric current is ...
Which of the following are produced after a nuclear fusion process? i. one heavy nucleus. ii. ne...
A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation? ...
The electric field intensity in a place where a charge of 10-10c experiences a force of 0.4N is?...