The moon is observed from 2 diametrically extremes A andB on earth. The angle of parallax is found to be 1°54'.if the diameter of earth is about 1.276×10^7m estimate the distance of the moon from the earth
Asked by Sanmit Ratnaparkhi | 20th Apr, 2015, 08:35: PM
Expert Answer:
Given that the parallax angle, θ = 1° 54' = 114'
114' = 114× 60'' = 6840''
We know that 1'' = 4.85 × 10-6 rad
Therefore 1° 54' = 6840'' × (4.85 × 10-6 ) rad
θ = 3.32×10-2 rad
Given the diameter of earth, b = 1.276 × 107 m
Hence the distance of the moon from the earth = 3.843 × 108 m
Answered by Jyothi Nair | 21st Apr, 2015, 09:54: AM
Related Videos
- State the number of significant figures in the following: a) 0.00081 b) 600900
- If the velocity of light in vacuum c, acceleration due to gravity g and atmospheric pressure p are the fundamental quantities,find the dimensions of length.
- suppose velocity of light (c) acceleration due to gravity (g) and pressure (p) are taken as fundamental units .what is the dimensional for mass in this system of unis.
- Example 2.13 Each side of a cube ismeasured to be 7.203 m. What are thetotal surface area and the volume of thecube to appropriate significant figures?
- what are vectors
- The sun's angular diameter is measured to be 1920'' ( 1920 seconds) . The distance D of sun from the earth is 1.496 × 10^11m . Find the diameter of the sum.
- What is meant by significant figures?
- State the number of significant figures in the following: 0.0005032 m2 2.64×1024 kg 3.000 m
- Magnitude of force F experienced by a certain object moving with speed v is given by F = Kv3, where K is a constant. Find the dimensions of K.
- Under what conditions the zeros are not significant?
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change