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

# Assertion :A force is needed to keep a block of cork inside water. Reason: When Upthrust due to water on block when fully submerged is more than its weight ,force is needed to keep block inside water.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
C
Assertion is correct but Reason is incorrect
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
D
Both Assertion and Reason are incorrect
No worries! Weâ€˜ve got your back. Try BYJUâ€˜S free classes today!
Open in App
Solution

## The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionThe density of cork is much less then the density of water so if left in a glass of water then it will start floating on the surface. This happens because the buoyant force due to water is equal to the weight but if we immerse the cork even more then the force of buoyancy increases because the volume of cork in the water increases due to which the buoyancy increases. So a fork is needed to immerse it in.

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Archimedes' Principle
PHYSICS
Watch in App
Explore more
Join BYJU'S Learning Program