3 - Dimensional Analysis Questions Answers

rain is falling down vertically 2m/s. a person is walking with velocity 2m/s on horizantal road. the angle made by the umbrella with vertical to protect from rain is

Asked By: VISHISTA
is this question helpfull: 7 1 submit your answer
Joshi sir comment
Tan inverse 2/2 = 45 degree

smiley IF 2sin2220 = p+qcosθ, FIND SMALLEST POSITIVE VALUE OF θ, WHEN p=1 AND q = -1.

Asked By: SARIKA SHARMA
is this question helpfull: 7 3 read solutions ( 4 ) | submit your answer
Joshi sir comment

2sin222.5 = 1- cos45 = 1 + (-1)cos45

so θ = 45 

what is the formula for hole mobility in a semiconductor. ( not dimensional formula ,that i will find myself)

Asked By: SARIKA SHARMA
is this question helpfull: 5 1 submit your answer
Joshi sir comment

hole mobility  = velocity of hole/electric field applied

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