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Two identical bodies are made of a material for which the heat capacity increases with temperature.One of these is at 100 °C, while the other one is at 0°C. If the two bodies are brought into contact, then, assuming no heat loss, the final common temperature is :

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 (1) less than 50 °C but greater than 0 °C  (2) 0 °C  (3) 50 °C  (4) more than 50 °C Ans 4 🕉️008

Common nitrogen fixer in paddy fields is

A Azospirillum B Frankia C Rhizobium D Oscillatoria Ans: Azospirilium 🕉️007

The increasing order of diazotization of the following compounds is :

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Ans: a<d<b<c 🕉️006

Two thin concentric shells made of copper with radius r1 and r2 (r2 >r1) have a material of thermal conductivity K filled between them. The inner and outer spheres are maintained at temperature T and T by keeping a heater of power P at the centre of the two spheres. Find the value of P.

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Solution: 🕉️005

The resistance of a solution a is 50 ohm and that of solution b is 100 ohm both solution are taken in same conductivity cell if equal volumes of solution a and b are taken then what is the resistance of mixture using same cell (assuming that there is no change in association of a and b)

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🕉️004

Which of the following variety is resistant to white rust?

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A. Parbhani kranti B. Himgiri C. Pusa Komal D. Karan rai       Correct  🕉️ 003