Q.

An iron casting has a large cavity in it. If weighs 6000 N in air and 4000 N in water. If density of iron is 8 gm/cm3 and density of water is 1 gm/cm3, find the volume of cavity in the casting.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

0.025 m3

b

0.125 m3

c

0.05 m3

d

0.225 m3

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

B = Buoyant force = (6000 - 4000) N = 2000 N∴ Volume of casting =20001000×10n3=0.2 m3Volume of iron in the casting =60008000×10n3=0.075 m3∴ Volume of cavity =(0.2−0.075)m3=0.125 m3
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
How to Join IIT after 10th
whats app icon