What is the angular magnification of a telescope having objective and eyepiece lenses of a focal lengths 30cm and 3cm respectively?

Similar Questions

The correct sequence of energy transformation in the operation of an x-ray tube is i. X-rays ii....

2000cm3 of a gas is collected at 27oC and 700mmHg. What is the volume of the gas at standard tempera...

A machine has an efficiency of 80%. If the machine is required to overcome a load of 60N with a forc...

Which process is responsible for production of energy in stars? ...

A source of sound produces waves in air of wavelength 1.65m. If the speed of sound in air is 330ms-1...

The unit of stress is ...

Which of the following cases cannot produce total internal reflection? A light ray travelling from ...

A proton of charge 1.6 x 1019C is projected into a uniform magnetic field of flux density with a con...

Which of the following statements best describes a rigid body? A body which ...

A radioactive isotope has a decay constant of 10-6s-1. Calculate its half - life?...