Q.

Two thermometers are constructed in the same way except that, one has a spherical bulb and the other a  cylindrical bulb. Which one will respond quicker to temperature change ?

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

spherical bulb thermometer

b

cylindrical bulb thermometer

c

both equally

d

either of any option

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

For a given volume, a cylinder has more surface area than a sphere. As rate of heat conduction is proportional to surface area, the thermometer with cylindrical bulbresponds more quickly.
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
Two thermometers are constructed in the same way except that, one has a spherical bulb and the other a  cylindrical bulb. Which one will respond quicker to temperature change ?