Kargil's temperature was recorded for a week i.e Monday to Saturday. All readings were in A.P .The sum of temperatures of Monday and Saturday was `5^@ C` more than the sum of temperatures of Tuesday and Saturday. If temperature of Wednesday was `-30^@ C`, then find the temperature on the other five days.

In winter, the temperature at a hill station from Monday to Friday is in A.P. The sum of the temperatures of Monday, Tuesday and Wednesday is zero and the sum of the temperatures of Thursday and Friday is 15°C . Find the temperature of each of the five days.

Half a mole of helium at 27 °C and at a pressure of 2 atmosphere is mixed with 1.5 mole of N_2 at 77 °C and at a pressure of 5 atmosphere so that the volume of the mixture is equal to the sum of their initial volumes. If the temperature of the mixture is 69 °C, then its pressure, in atmospheres, is

A barometer tube of length 90 cm contains some air above mercury. The reading of the mercury level is 74.8 cm when the atmospheric pressure is 76 cm and temperature is 30^@C . If the reading is observed to be 75.4 cm on some another day when temperature is 10^@C , then what will be true pressure?

The daily maximum temperature of a city for a certain month is given in degree Celsius in the following data : By taking suitable classes, prepare the grouped frequency distribution table. From the table, answer the following question: For how many days was the maximum temperature. 34^@ C of more than 34 ^@ C ?

The temperature of the filaments of a 100W electric lamp is 2727^@C . The emissivity of the surface of the filament is 0.086 and its radius is 0.5 mm. Find the length of the filament. sigma = 5.7 xx 10^-8 S.I. units.

An ice box used for keeping cold eatables has a total wall area of 1 metre^2 and a wall thickness of 5.0 cm. The thermal conductivity of the ice box is K=0.01 (jou l e)/(metre)^@C . It is filled with ice at 0^@C along with eatables on a day when the temperature is 30^@C . The latent heat of fusion of ice is 334 x 10^3 joules/kg. The amount of ice melted in one day is (1 day = 86,400 seconds)

Two identical blocks of ice move in opposite directions with equal speed and collide with each other. What will be the minimum speed required to make both the blocks melt completely, if the initial temperatures of the blocks were -8^@C each? (Specific heat of ice is 2100 Jkg^-1 K^-1 and Latent heat of fusion of ice is 3.36 xx 10^-5 Jkg^-1')

The temperature of an open room of volume 30 m^(3) increases from 17^(@)C to 27^(@)C due to sunshine. The atmospheric pressure in the room remains 1 xx 10^(5) Pa . If n_(i) and n_(f) are the number of molecules in the room before and after heating then n_(f) and n_(i) will be