When the length of a microscope tube increases
In the case of hypermetropia (i) the image of a near object is formed behind the retina (ii) the image of a distant object is formed in front of the retina (iii) a concave lens should be used for correction (iv) a concave lens should be used for correction
15
Nov
In the case of hypermetropia (i) the image of a near object is formed behind the retina (ii) the image of a distant object is formed in front of the retina (iii) a concave lens should be used for correction (iv) a concave lens should be used for correction its magnifying power When the length [...]
For a telescope to have large resolving power the 1. focal length of its objective should be large 2. focal length of its eye-piece should be large 3. focal length of its eye-piece should be small 4. aperture of its objective should be large
15
Nov
For a telescope to have large resolving power the 1. focal length of its objective should be large 2. focal length of its eye-piece should be large 3. focal length of its eye-piece should be small 4. aperture of its objective should be large its magnifying power When the length of a microscope tube increases [...]
In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is I . The magnification of the telescope is
15
Nov
In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is I . The magnification of the telescope is its magnifying power When the length of a microscope tube [...]
The diameter of the moon is 3.5×10^3 km and its distance from the earth is 3.8×10^5 km. It is seen by a telescope having the focal length of the objective and the eye-piece as 4m and 10cm respectively. The diameter of the image of the moon will be approximately
15
Nov
The diameter of the moon is 3.5×10^3 km and its distance from the earth is 3.8×10^5 km. It is seen by a telescope having the focal length of the objective and the eye-piece as 4m and 10cm respectively. The diameter of the image of the moon will be approximately its magnifying power When the length [...]
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focused on a distant object in such a way that parallel rays emerge from the eye lens. If the object subtends an angle of 2^o at the objective, the angular width of the image is
15
Nov
A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focused on a distant object in such a way that parallel rays emerge from the eye lens. If the object subtends an angle of 2^o at the objective, the angular width of [...]
When the length of a microscope tube increases, its magnifying power
15
Nov
When the length of a microscope tube increases, its magnifying power its magnifying power When the length of a microscope tube increases November 15, 2020 Category: Cengage NEET by C.P Singh , Chapter 19 - Optical Instruments , Part 2 ,