Tag: space research and satellites
Questions Related to space research and satellites
A simple telescope has
Match List-I with List- II and select the answer using the codes given below the lists:
List-I | List-II | ||
---|---|---|---|
A. | Microscope | 1. | To see objects on the surface by an observer in a trench |
B. | Telescope | 2. | To see small objects |
C. | Periscope | 3. | To see distant objects |
D. | Camera | 4. | To take photographs of objects |
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 $\displaystyle \infty $. Then the magnifying power and length of the tube are:
An astronomical telescope has an eyepiece of focal length $5 cm$. If magnification produced is $14$ in normal adjustment, then what is the length of telescope?
Why is it advised to use telescope in a clear sky?
A telescope:
A planet is observed by an astronomical reflecting telescope having an objective of focal length 16 m and an eye - piece of focal length 2 cm.
Telescopes make the far objects appear:
The anguThe angular resolution of 10cm diameter telescope at a wavelength of $5000nm$ is of order of the
The optical length of an astronomical telescope with magnifying power of 10, for normal vision is 44cm. What is focal length of the objective?