Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 9 Answered

Why are weather observation balloons partially filled with helium gas at ground level?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer
On higher altitudes atmospheric pressure decreases. Thus, the balloon starts expanding because of pressure inside and outside the balloon. Thus, to allow expansion, such that the fabric of balloon does not burst, the balloon is partially filled with helium gas at ground level.
Answered by | 04 Jun, 2014, 03:23: PM
ICSE 9 - Physics
Asked by tirtharoychowdhury351 | 21 Jun, 2018, 12:21: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×