Tag: space travel
Questions Related to space travel
The planet having the largest number of satellites amongst the following is
Which star is called earth satellite?
The angular resolution of a 10cm diameter telescope at a wavelength of $5000 A^0$ is of the order of -
An observer looks at a distant tree of height $10$ m with a telescope magnifying power of $20$. To the observer, the top appears
The focal length of eye lens and object lens of a telescope is 4 mm and 4 cm respectively. If final image of an far object is at $\infty $. Then the magnifying power and length of the tube are :
Which of the following is correct about astronomical telescope?
Telescopic aids are used:
Why is it advised to used telescope at night?
Which of the following is true for a telescope?
In an astronomical telescope the focal lengths of objective and eyepiece should respectively be :