What causes chromatic aberration? (a) Marginal rays (b) Central rays

(b) have high resolution Explanation: Large aperture increases the amount of light gathered by the telescope increasing the resolution.

Chromatic aberration in a lens is caused by (d) dispersion

 (d) dispersion

(b) The aperture of objective lens of Astronomical telescope is large to get better resolution. Since resolution of telescope power is R = D/1.22 λ , where D is the...

If the marginal propensity to consume is greater than marginal propensity to save, the value of the multiplier will be greater than 2. Hence, the correct option is (a).

Behaviour of the marginal product in the Law of Variable Proportions: Law of variable proportions states that when total output or production of a commodity is increased by adding units...

When Marginal Cost is rising and Average Variable Cost is falling, Marginal cost lies below the Average Variable Cost. MC is less than AVC.

No, it cannot be its equilibrium output because the MC exceeds the MR. The firm is running a loss.

There are two conditions of producer's equilibrium: (i) MC = MR (ii) MC is greater than MR after equilibrium. The condition are fulfilled at 4 units of output. Output (Units) MC (in Rs.) MR (in Rs.)  1 2 3 12 10 9 10 10 10 4 10 10 5 13 10 Explanation: (i) So long...

Output (Units) MR (in Rs.) MC (in Rs.) 1 2 3 10 10 10 12 10 9 4 10 10 5 10 13 Producer's equilibrium refers to a situation, where a producer is producing that level of output, at which its profits are maximum. In other words, it is...