CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Reynold's Number

Assertion: An...

Question

Assertion: An object falling through a viscous medium eventually attains terminal velocity
Reason: All the rain drops hit the surface of the earth with the same constant velocity

A

Both assertion and reason are true and reason is correct explanation of assertion.

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

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

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

C

Assertion is true but reason is false.

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

D

Both assertion and reason are false.

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

Open in App

Solution

The correct option is D Assertion is true but reason is false.
As an object moves through a viscous medium, the two opposing forces weight and viscous force balance each other and they attain a terminal velocity.
All rain drops won't hit the earth with same velocity as viscosity of atmosphere is not uniform and all rain drops are not of same mass.

Suggest Corrections

thumbs-up

0

Similar questions

Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia

Q. Assertion: Every parallelogram is a rectangle.
Reason: The angle bisectors of a parallelogram form a rectangle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: A cyclic parallelogram is a square.
Reason: Diameter is the largest chord in a circle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: The point O(0, 0) lies in quadrant I.
Reason: The point O(0, 0) lies on both the axes.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Viscosity

PHYSICS

Watch in App

explore_more_icon

Explore more

Reynold's Number

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon