A telescope has an objective of diameter 2.5 m. What is the angular resolution, When it observes at`5500 overset@A`.

A pipe 2 cm in diameter has a constriction of diameter 1 cm. What is the velocity of flow at the constriction, if velocity of flow in the broader region of the pipe is 5 cm/s ?

What is meant by limit of angular resolution and the resolving power of telescope ?

A pipe 2 cm in diameter has a constriction of diameter 1 cm. What it’s the velocity of flow at the constriction. If velocity of flow in the broader region of the pipe is 5 cm/s?

An astronomical telescope has an angular magnification of magnitude 5 for distant object. The separation between the objective and the eyepiece is 36 cm and the final image is formed at infinity. The focal length f_(0) of the objective and the focal length f_(0) of the eyepiece are

A body of mass 0.5 kg is whirled in a vertical circle at an angular frequency of 10 rad/s. If the radius of the circle is 0.5 m. What is the tension in the string when the body is at the top of the circle ?

Whatis theminimumangularseparation between two stars if a telescope is used to observe them, with an objective of aperture 20 cms. ( lambda = 5900 overset@A )