Introduction — Economics STD 12 Humanities & Commerce — Question

Giving reasons, state whether the following statement are true or false.
When marginal revenue falls to zero, average revenue becomes maximum.

Giving reasons, state whether the following statements are true or false:
Both depreciation and devaluation of domestic currency have the same meaning.

Are the following statement true or false? Give reason.
Revaluation and appreciation of currency are one and the same thing.

Giving reasons, state if the following statements are true or false.
An increase in the income of a consumer would result in an increase in demand for all types of goods that are demanded by a consumer.

State giving reasons, whether the following statements are true or false:
The difference between Average Total Cost and Average Variable Cost is constant.

Giving reasons, state whether the following statements are true or false.
In perfect competition, a firm independently determines price.

When average revenue falls marginal revenue falls faster than average revenue. (True/ False)

In Keynes theory, MPC fall with an increase in income.

Giving reasons, state whether the following statements are true or false.
When demand curve is Rectangular hyperbola, ED > 1.

“Returns to a variable factor operates in the long period." True or False? Give reason in support of your answer.