Science, asked by sujalsrisujal2617, 1 year ago

It is necessary to illuminate the bottom of a well by reflected solar beam when the light is incident at an angle of alpha = 40 0 to the vertical. At what angle beta to the horizontal should a plane mirror be placed - (a)500 (b)400 (c)700 (d)200

Answers

Answered by harmeetsingh365
0
bsbsbsbsbjskakskxhhdhsuwhsa
Previous Question
Next Question
Similar questions
Math, 8 months ago
Write at least 5 equal fractions of the following A)2/3 b)4/5 c)4 d)-4/6 e)1...
English, 8 months ago
please answer me fast it's urgent​...
Math, 8 months ago
The smallest number that should be subtracted from 300 to make it a perfect square​ step by step instructions...
Math, 1 year ago
If a,b and c are three natural numbers such that abc= 3600 , HCF(a,b,c)= 2, HCF(a,b) =10, HCF(b,c)=2 and HCF(a,c)=6 then what is LCM(a,b,c) equal to??
Math, 1 year ago
What must be added or subtracted to p(x) = 8x4 + 14x3 + 2x2 + 8x – 12 so that 4x2 + 3x – 2 is a factor of p(x).
Biology, 1 year ago
what is corolloid and where it is found...
Social Sciences, 1 year ago
what was the blandongdiesten system...
Science, 1 year ago
every atom is electrically options 1 negatively charged, 2 positively charged, 3 neutral, 4stable...