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A map shows the elevations of Darjeeling, Gangtok, Kalimpong, Pelling, and Siliguri. Kalimpong is at a lower elevation than Gangtok, Pelling is at a lower elevation than Gangtok. Pelling is at a higher elevation than Siliguri. Darjeeling is at a higher elevation than Gangtok. Which of the following statements can be inferred from the paragraph above? i. Pelling is at a higher elevation than Kalimpong ii. Kalimpong is at a lower elevation than Darjeeling iii. Kalimpong is at a higher elevation than Siliguri iv. Siliguri is at a lower elevation than Gangtok
Which device maintains a body at a temperature lower than the temperature of the surroundings?
Seven boys are living in different buildings at a different height. Abir, Ayush, Anand, Ajay, Alok, Nakul and Nandu. Ayush is living on a higher floor than Nakul and Abir. Abir lives on a higher floor than Nakul and Alok is on the lowest floor. Nandu lives in a lower height than Ayush but higher than Abir and Nakul. Ajay is the one who lives lower than Nakul. Anand lives on a higher floor than Ayush.  Find whose building is the highest one?
There are six students P, Q, R, S, T and U in class who scored some marks in their final examination. I. P is the second-lowest among all. II. Q is neither top nor least ranked among all but a higher rank than S. III. R's rank is higher than U but lower than T while U scores lower than P. IV. S is lower than T but higher than R. Who is ranked 3rd last in the class?
A body has same temperature as that of the surroundings. The ratio of radiations emitted and radiations received from the surroundings is
Two refrigerators M and N operate in series. The refrigerator M absorbs energy at the rate of 1 kW from a body at temperature 400 K and rejects energy as heat to a body at a temperature T. The refrigerator N absorbs the same quantity of energy which is rejected by the refrigerator N from the body at temperature T, and rejects energy as heat to a body at temperature 800 K. If both the refrigerators have the same C.O.P., what is the value temperature T?
There are seven colleagues – P, Q, R, S, T, U and V who get different salaries. Their salaries are 10000, 12000, 14000, 15000, 18000, 20000 and 22000 (not necessarily in the same order). V neither gets highest salary nor the lowest one. Only three people get the higher salary than S. P gets less salary than V and the difference between their salaries is Rs. 4000. T gets higher salary than U but lesser than R. U gets higher salary than Q. Q does not get a salary of Rs. 12000. Which of the following statement is true?
In which of the following case we can surely say that the body A is charged: a) When a positively charged body is kept near to body A and it gets attracted b) When a negatively charged body is kept near to body A and it gets  attracted c) When a positively charged body is kept near to body A and it gets repelled
A large plane, perfectly insulated on one face and maintained at a fixed temperature T 1 on the bare face, has an emissivity of 0.84 and loses 250 W/m2 when exposed to surroundings at nearly 0 K. The radiant heat loss from another plane of the same size is 125 W/m2 when bare face having emissivity 0.42 and is maintained at temperature T 2 is exposed to the same surroundings. Subsequently these two planes are brought together so that the parallel bare faces lie only 1 cm apart and the heat supply to each is so regulated that their respective temperatures T 1 and T 2 remains unchanged. Determine he net heat flux between the planes
When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________