Assertion (A): The demand curve for woollen clothes is likely to shift rightward in winter.
Reason (R): A demand curve shows the quantities a consumer is willing to buy at different prices of the same commodity.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Both (A) and (R) are true but (R) is not the correct explanation of (A).
Assertion (A): The demand curve for woollen clothes is likely to shift rightward in winter. — True. In winter people prefer woollens more, so they want more at every price.
Reason (R): A demand curve shows the quantities a consumer is willing to buy at different prices of the same commodity. — True. This is the meaning of a demand curve.
Why R does not explain A?
R only says what a demand curve shows: quantities at different prices of the good. A change in its own price moves the consumer along the curve; it does not shift it. The real reason for A is a change in tastes and preferences. When preferences change in favour of a good, its demand curve shifts rightward, as for ice-creams in summer.
NCERT (2026-27): “2.4.5 Shifts in the Demand Curve … The demand curve can also shift due to a change in the tastes and preferences of the consumer. If the consumer’s preferences change in favour of a good, the demand curve for such a good shifts rightward. On the other hand, the demand curve shifts leftward due to an unfavourable change in the preferences of the consumer. The demand curve for ice-creams, for example, is likely to shift rightward in the summer because of preference for ice-creams goes up in summer. …” “Derivation of Demand Curve in the Case of a Single Commodity (Law of Diminishing Marginal Utility) … Demand curve is a graphic presentation of various quantities of a commodity that a consumer is willing to buy at different prices of the same commodity, while holding constant prices of other related commodities and income of the consumer.” |