Questions

Q:

In perfect competition _____.

A) Products can be similar or different B) Producer can control price by controlling production
C) Demand curve is perfectly elastic D) All firms make economic profit in the long run
 
Answer & Explanation Answer: C) Demand curve is perfectly elastic

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Q:

What is the Greenhouse Effect?

A) The fall in population of plants due to human activity B) It is the warming of earth's surface due to its atmosphere
C) The polluting effect of burning fossil fuels D) The heating of the atmosphere due to depletion of the ozone layer
 
Answer & Explanation Answer: B) It is the warming of earth's surface due to its atmosphere

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Q:

Calculate the accounting profits for a firm, if its economic profits for the year are Rs 60 crores, total implicit costs are Rs 18.5 crores and total explicit costs are Rs 35 crores

A) Rs 113.5 crores B) Rs 43.5 crores
C) Rs 76.5 crores D) Rs 78.5 crores
 
Answer & Explanation Answer: D) Rs 78.5 crores

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Q:

1 pascal equals 1 ________________.

A) N m2 B) N m-2
C) N m D) N m-1
 
Answer & Explanation Answer: B) N m-2

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Q:

Two identical resistors, each of 10 ohm, are connected in parallel. This combination, in turn, is connected to a third resistor of 10 ohm. The equivalent resistance of the combination is ___.

A) 30 ohm B) 5 ohm
C) 15 ohm D) 10 ohm
 
Answer & Explanation Answer: C) 15 ohm

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Q:

What does the kinetic energy (KE) of a moving body depend upon?

A) Mass & its position B) Weight & its position
C) Mass & acceleration D) Mass & velocity
 
Answer & Explanation Answer: D) Mass & velocity

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Q:

In which of the following mentioned activities is the potential energy (P.E) converted into kinetic energy(K.E)?

A) The explosion of a fire cracker B) The switching on of a torch
C) The switching off of a torch D) The swinging of a pendulum
 
Answer & Explanation Answer: D) The swinging of a pendulum

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Q:

If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?

A) 1 Ampere B) 1/2 Ampere
C) 1/4 Ampere D) 2 Amperes
 
Answer & Explanation Answer: D) 2 Amperes

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