Measurement of small and large distances - class-VI
Description: measurement of small and large distances | |
Number of Questions: 21 | |
Created by: Neema Pandya | |
Tags: making measurements measurements and experimentation motion and measurement nature of the physical world and measurement physical quantities and measurement physical world and measurement physics motion and measurement of distances units and measurement: error analysis measurement units and measurement units and measurements measurements and uncertainties learning how to measure |
From the following, the biggest unit of energy is?
Which one of the following methods is used to measure distance of a planet or a star from the earth?
'The parallax angle in radians is: $\theta = \left( 1 + \frac { 54 } { 60 } \right) \times \frac { \pi } { 180 } = 0.03316 \mathrm { rad }$
Hence, the distance between moon and earth:
Which of the following instrument can be used to determine the radius of curvature of a spherical surface?
Parallax method is suitable for the measurement of:
Which of the following is the best method to measure microscopic distances?
What is the approximation made in the parallax method?
Two stars $S _1$ and $S _2$ are located at distances $d _1$ and $d _2$ respectively. Also if $d _1>d _2$ then which of the following statements is true?
Parallax is the apparent displacement of an object because of:
Parallax method is useful
To minimise parallax error, the observer should place the object :
The effect of parallax is used to measure:
A star has a parallax angle p of 0.723 arcseconds. What is the distance of the star?
Error due to eye vision is termed as :
A star's distance ($d$) and its parallax angle ($p$) are related to each other as:
Parallax method is based on which of the following principle?
Parallax angles _______ $0.01/ arcsec$ are very difficult to measure from Earth.
A student measure the height h of a convex mirror using spherometer. The legs of the spherometer are 4 cm apart and there are 10 divisions per cm on its linear scale and circular scale has 50 divisions. The student takes 2 as linear scale division and 40 as circular scale division. What is the radius of curvature of the convex mirror ?
A spherometer has 10 threads per cm and its circular scale has 50 divisions. The least count of the instrument is
If a star is $5.2\times 10^{16}\ m$ away. What is the parallax angle in degrees?
A star is $1.45\ parsec$ light years away. How much parallax would this star show when viewed from two locations of the earth six months apart in its orbit around the sun?