Why does the objective of an optical telescope have large focal length and large aperture? Also explain why does a reflector give better image of a small portion of the celestial body?
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Hey dear...... ☺️☺️
Ur answer is here.....
The telescope wants to gather more light to show unconscious objects. Therefore the purpose lens or mirror is always bigger.
The telescope does 3 things
1 Collect more light than your eyes.
2 They solve the closest objects.
3 They grow Work 1 and 2 depend on the size of the objective.
Hope this helps you ☺️☺️
Ur answer is here.....
The telescope wants to gather more light to show unconscious objects. Therefore the purpose lens or mirror is always bigger.
The telescope does 3 things
1 Collect more light than your eyes.
2 They solve the closest objects.
3 They grow Work 1 and 2 depend on the size of the objective.
Hope this helps you ☺️☺️
abnish97:
thanks
a grinding wheel of mass 5.0kg and diameter 0.4 m is rotating with an angular speed of 2 rev S-1,calculate the torque which will increase its angular speed to 8 revolution per second in 2s.
please solved
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