The diameter of the lens of a telescope is 0.61 m and the wavelength of light used is 5000 textÅ . The resolution power of the telescope is

Question

The diameter of the lens of a telescope is 0.61 m and the wavelength of light used is 5000 textÅ . The resolution power of the telescope is (A) 2× 106 (B) 106 (C) 2× 104 (D) 2× 102

Tardigrade Admin · Accepted Answer

Resolving power ((1/d θ ))=(D/1.22 λ ) =(0.61/1.22 × 5000 × 10- 10) =106

Q. The diameter of the lens of a telescope is $0.61 m$ and the wavelength of light used is $5000 Å$ . The resolution power of the telescope is

$2 \times 1 0^{6}$

$1 0^{6}$

$2 \times 1 0^{4}$

$2 \times 1 0^{2}$

Resolving power $(\frac{1}{d θ}) = \frac{D}{1.22 λ}$
$= \frac{0.61}{1.22 \times 5000 \times 1 0 ^{- 10}}$
$= 1 0^{6}$

Q. The diameter of the lens of a telescope is 0.61m and the wavelength of light used is 5000Å . The resolution power of the telescope is

2×106

106

2×104

2×102