At Kavalur in India, the astronomers using a telescope whose objective had a diameter of one metre started using a telescope of diameter 2.54 m. This resulted in

Options

A. the increase in the resolving power by 2.54 times for the same `lamda`
B. the increase in the limiting angle by 2.54 times for the same `lamda`
C. decrease in the resolving power
D. no effect on the limiting angle

Answer

a

Explanation

Resolving power of a telescope
`R.P=(D)/(1.22lambda)`
where D is the diameter of the objective lens and `lambda` is the wavelength of light used. `:.R.P propD`