MTG NEET Physics

An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of 2/1 , focal length of the concave mirror required is : An object is kept at a distance of 60 cm from a concave mirror. For getting a magnification of 2/1 focal length of the concave [...]

A 4.5 cm object is placed perpendicular to the axis of a convex mirror of focal length 15 cm at a distance of 12 cm. The size of the image is A 4.5 cm object is placed perpendicular to the axis of a convex mirror of focal length 15 cm at a distance of 12 [...]

Consider an optical system consisting of a concave mirror M1 and convex mirror M2 of radii of curvatures 60 cm and 20 cm respectively. Two mirrors are separated by a distance of 40 cm. An object O is placed at a distance 80 cm from P. The final image is formed at a distance The [...]

The length of the telescope is 36 cm. The focal lengths of its lens can be The length of the telescope is 36 cm. The focal lengths of its lens can be November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,

The magnifying power of an astronomical telescope is 8 and the distance between the two lenses is 54cm. The focal length of eye lens and objective lens will be respectively The magnifying power of an astronomical telescope is 8 and the distance between the two lenses is 54cm. The focal length of eye lens and [...]

In a laboratory four convex lenses L1, L2, L3 ​ and L4 of focal lengths 2,4,6 and 8cm respectively are available. Two of these lenses form a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively : 4 6 and 8cm respectively are available. Two of these lenses [...]

Magnification at least distance of distinct vision of a simple microscope having its focal length 5 cm is Magnification at least distance of distinct vision of a simple microscope having its focal length 5 cm is November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 ,

The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be The focal lengths of the objective and the eyepiece of the telescope are 225 cm and 5 cm respectively. The magnifying power of the telescope will be November [...]

The focal length of the objective and of the eye-piece of a compound microscope are fo and fe respectively. If L is the tube length and D, the least distance of distinct vision, then its angular magnification, when the image is formed at infinity is The focal length of the objective and of the eye-piece [...]

A telescope consists of two thin lenses of focal lengths 0.3 m and 3 cm respectively. It is focused on moon which subtends on angle of 0.5^o at the objective. Then, the angle subtended at the eye by the final image will be: A telescope consists of two thin lenses of focal lengths 0.3 m [...]