Tag: space exploration and forms of light
Questions Related to space exploration and forms of light
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 :
The image formed by the telescope in normal adjustment position is at :
While viewing a distant object with telescope a housefly sits on objective lens. Then which of the following is the correct statement :