Statement I : A pinwheel placed inside a closed box doesn’t rotate.
Statement II : There is no air inside the closed box.

Both I and II are true, II is the correct explanation of I.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both I and II are true, II is not the correct explanation of I.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

I is true, but II is false.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both I and II are false.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
I is true, but II is false.

Air is present everywhere. Hence, air is present inside the box. But there is no moving air or wind inside the box that would help the pinwheel to rotate.

Suggest Corrections

Similar questions

Q. Earth's magnetic field inside a closed iron box, as compared to that outside is

Q. Assertion :Statement I: Due to diffused or irregular reflection of light, a closed room gets light even if no direct sunlight falls inside the room. Reason: Statement II: Irregular reflection, where the reflected rays are not parallel, does not follow the laws of reflection.

There are two boxes A & B. Cell phones are kept in both the boxes, all air is sucked from box A and then closed by a device. While box B is simply closed by a device without sucking air from it. A call is made simultaneously on both the phones, but sound comes only from box B. This is because

Statement 1:In box B there are air particles to vibrate but in box A there is vacuum.

Statement 2 : Sound needs a medium for propagation.

Q. A cubical box of side

0.20 m

is constructed from

0.012 m

thick concrete panels of thermal conductivity

K = 0.8 W m^{- 1} K^{- 1}

. A

100 W

heater is sealed inside the box and switched on. The temperature of air outside the box is

20^{\circ} C

. After a long period of time, the air temperature inside the box will be close to

Q. Assertion(A) : Earth's magnetic field inside a closed iron box is less as compared to the outside.
Reason(R) : The magnetic permeability of iron is low.

Join BYJU'S Learning Program

Statement I : A pinwheel placed inside a closed box doesn’t rotate. Statement II : There is no air inside the closed box.

The correct option is C I is true, but II is false. Air is present everywhere. Hence, air is present inside the box. But there is no moving air or wind inside the box that would help the pinwheel to rotate.

Statement I : A pinwheel placed inside a closed box doesn’t rotate.
Statement II : There is no air inside the closed box.

The correct option is C
I is true, but II is false.

Air is present everywhere. Hence, air is present inside the box. But there is no moving air or wind inside the box that would help the pinwheel to rotate.