JEE Main 2023 (Online) 29th January Morning Shift | Properties of Matter Question 82 | Physics

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

262 kPa

360 kPa

270 kPa

278 kPa

JEE Main 2023 (Online) 25th January Morning Shift

MCQ (Single Correct Answer)

-1

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-IV, B-III, C-I, D-II

A-IV, B-III, C-II, D-I

A-I, B-I, C-III, D-IV

A-III, B-IV, C-I, D-II

JEE Main 2023 (Online) 25th January Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

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?

2 minutes

0.5 minute

1.4 minutes

1 minute

JEE Main 2023 (Online) 24th January Evening Shift

MCQ (Single Correct Answer)

-1

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

Both A and R are correct and R is the correct explanation of A