The focal lengths of the objective and e...

The focal lengths of the objective and eye lenses of a telescope are respectively 200 cm and 5 cm . The maximum magnifying power of the telescope will be

`-40`

`-48`

`-60`

`-100`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

RAY OPTICS
ERRORLESS |Exercise Refraction of Light at Plane Surfaces|9 Videos
RAY OPTICS
ERRORLESS |Exercise Refraction at Curved Surface|8 Videos
MAGNETISM
ERRORLESS |Exercise Assertion & Reason|1 Videos
WAVE OPTICS
ERRORLESS |Exercise SET|23 Videos

Similar Questions

Explore conceptually related problems

The focal length of the objective and eye piece of a telescope are respectively 60 cm and 10 cm . The magnitude of the magnifying power when the image is formed at infinity is

On seeing with unaided eye, the visual angle of moon at the eye is 0.6^(@) . The focal lengths of the objective and the eyepiece of a telescope are respectively 200 cm and 5 cm. What will the visual angle on seeing through the telescope?

The focal length of objecive and eye-piece of astronomical telescope are 2 m and 5 cm respectively. The magnifying power of telescop when final image is formed at infinity is

The focal lengths of the objective and eye - lens of a microscope are 1cm and 5 cm respectively. If the magnifying power for the relaxed eye is 45 , then the length of the tube is

The focal lengths of the eyepiece and the objective of an astronimical telescope are 2 cm and 100 cm respectively. The magnifying power of the telescope for normal adjustment and the length of the telescope is

The focal length of objective and eyelens of a astonomical telescope are respectively 20 cm and 5 cm. Final image is formed at least distance of distinct vision. The magnifying power will be

The length of the tube of a microscope is 10 cm . The focal lengths of the objective and eye lenses are 0.5 cm and 1.0 cm . The magnifying power of the microscope is about

The focal length of the objective and eyepiece of an astronomical telescope for normal adjustments are 50 cm and 5 cm. The length of the telescope should be:

The focal lengths of the objective and the eye piece of an astronomical telescope are 60 cm and 5 cm respectively. Calculate the magnifying power and the length of the telescope when the final image is formed at (i) infinity, (ii) least distance of distinct vision (25 cm)

ERRORLESS -RAY OPTICS-SET

The focal lengths of the objective and eye lenses of a telescope are r...
Text Solution
|
In an astronomical telescope in normal adjustment a straight black lin...
Text Solution
|
Three lenses L(1) , L(2) , L(3) are placed co-axially as shown in figu...
Text Solution
|
An object is placed at a point distant x from the focus of a convex le...
Text Solution
|
The diameter of the eye-ball of a normal eye is about 2.5 cm . The pow...
Text Solution
|
In a thin spherical fish bowl of radius 10 cm filled with water of ref...
Text Solution
|
A small fish 0.4 m below the surface of a lake is viewed through a sim...
Text Solution
|
A water drop in air refractes the light ray as
Text Solution
|
Which of the following ray diagram show physically possible refraction...
Text Solution
|
Following figure shows the multiple reflections of a light ray along a...
Text Solution
|
When the rectangular metal tank is filled to the top with an unknown l...
Text Solution
|
A concave mirror and a converging lens (glass with mu = 1.5) both have...
Text Solution
|
A ray of light strikes a plane mirror M at an angle of 45^(@) as shown...
Text Solution
|
A slab of glass, of thickness 6 cm and refractive index 1.5, is placed...
Text Solution
|
A point source of light S is placed at the bottom of a vessel containi...
Text Solution
|
A point object is placed midway between two plane mirrors a distance a...
Text Solution
|
A convergent beam of light is incident on a convex mirror so as to con...
Text Solution
|
PQR is a right angled prism with other angles as 60^(@) and 30^(@). Re...
Text Solution
|
When a ray is refracted from one medium to another, the wavelength cha...
Text Solution
|
Two this lenses, when in contact, produce a combination of power +10 d...
Text Solution
|
The plane faces of two identical plano convex lenses, each with focal ...
Text Solution
|