Q1.Repeaters used in electronic communication generally
Answer : Option AExplaination / Solution:
In telecommunications, a repeater is an electronic device that receives a signal and retransmits it.Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction.A repeater is a combinatin of a transmitter,an amplifier and retransmits it to the receiver somtimes witha a change of carrier frequency.
Q4.What was the condition of foreign trade under British rule
Answer : Option BExplaination / Solution:
Restrictive policies of commodities production , trade and tariff were imposed by the colonial government, it adversely affected the structure, composition and volume of India’s foreign trade.
Q8.A passenger arriving in a new town wishes to go from the station to a hotel located 10 km away on a straight road from the station. A dishonest cabman takes him along a circuitous path 23 km long and reaches the hotel in 28 min. What is (a) the average speed of the taxi, (b) the magnitude of average velocity?
Answer : Option DExplaination / Solution:
(a) Total distance travelled = 23 km Total time taken = 28 min = 2860 h ∴ Average speed of the taxi = TotaldistancetravelledTotaltimetaken =2312860=49.3km/h
(b) Distance between the hotel and the station = 10 km = Displacement of the car ∴ Average velocity = 1012860=21.4km/h
Answer : Option BExplaination / Solution:
Per capita income or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0