Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

The 4th observation also gives the same result (i.e. 1.5). Then kindly let me know why are we choosing the 1st observation.

Asked by mrinalini mrinalini 28th February 2015, 9:32 PM
Answered by Expert
Answer:
According to the fourth observation,
 begin mathsize 12px style angle straight i space equals space 60 degree space and space angle space straight r space equals space 40 degree Therefore comma space fraction numerator sini over denominator sin space straight r end fraction space equals space fraction numerator sin space 60 degree over denominator sin space 40 degree end fraction space equals space 1.347 end style
Whereas, the ratio of the same in option (1) is 1.535. So the correct answer is option (1)
Answered by Expert 11th December 2017, 7:07 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Latest Questions

CBSE XI Science Chemistry
qsnImg
Asked by smanishkumar2002 20th May 2018, 10:46 PM
CBSE XI Science Chemistry
Asked by smanishkumar2002 20th May 2018, 10:45 PM
CBSE XI Science Chemistry
qsnImg
Asked by smanishkumar2002 20th May 2018, 10:27 PM