A bicycle tyre is filled with air having pressure of $$270 ~\mathrm{kPa}$$ at $$27^{\circ} \mathrm{C}$$. The approximate pressure of the air in the tyre when the temperature increases to $$36^{\circ} \mathrm{C}$$ is
Match List I with List II
| List I | List II | ||
|---|---|---|---|
| A. | Surface tension | I. | $$\mathrm{kg~m^{-1}~s^{-1}}$$ |
| B. | Pressure | II. | $$\mathrm{kg~ms^{-1}}$$ |
| C. | Viscosity | III. | $$\mathrm{kg~m^{-1}~s^{-2}}$$ |
| D. | Impulse | IV. | $$\mathrm{kg~s^{-2}}$$ |
Choose the correct answer from the options given below :
A bowl filled with very hot soup cools from 98$$^\circ$$C to 86$$^\circ$$C in 2 minutes when the room temperature is 22$$^\circ$$C. How long it will take to cool from 75$$^\circ$$C to 69$$^\circ$$C?
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Steel is used in the construction of buildings and bridges.
Reason R : Steel is more elastic and its elastic limit is high.
In the light of above statements, choose the most appropriate answer from the options given below
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