In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is 1. The magnification of the telescope is

Question:

Options :

(a) L/l-1
(b) L+1/L-1
(c) L/l
(d) L/l+1

Answer :

Answer Steps :

step 1

step 2

Video Tutorial

If a high power heater is connected to electric mains, then the bulbs in the house become dim, because there is a

Two wires ‘A’ and ‘B’ of the same material have their lengths in the ratio 1: 2 and radii in the ratio 2: 1. The two wires are connected in parallel across a battery. The ratio of the heat produced in ‘A’ to the heat produced in ‘B’ for the same time is

A piece of fuse wire melts when a current of 15 ampere flows through it. With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Online Support

Related Questions

If a high power heater is connected to electric mains, then the bulbs in the house become dim, because there is a

Two wires ‘A’ and ‘B’ of the same material have their lengths in the ratio 1: 2 and radii in the ratio 2: 1. The two wires are connected in parallel across a battery. The ratio of the heat produced in ‘A’ to the heat produced in ‘B’ for the same time is

A piece of fuse wire melts when a current of 15 ampere flows through it. With this current, if it dissipates 22.5 W, the resistance of fuse wire will be

Explore Our Courses

Access To All Courses from VgyanHub

Popular Courses

Company

Need Some Help?