CBSE XII Science Physics Ray Optics and Optical Instruments
where can i find all the derivation, working of optical instruments related to this chapters????
Asked by Karishma
2nd October 2014
1:44 PM
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NEET1 ALL Class Physics Refraction of Light
The focal length of objective lens of a telescope is 30cm and that of its eye lens is 3cm.it is focused on a scale of distance 2meter on it. The distance of objective lens from the eye lens to see with relaxed eyes is? A-33cm,B-65.3cm,C-38.3cm,D-40.3cm
Asked by Priyanka
15th November 2017
12:47 PM
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CBSE XII Science Physics
An eyepiece of a telescope consists of two plano convex lenses L1 and L2 each of focal length f separated by a distance of 2ƒ/3. Where should L1 be placed relative to focus of the objective lens of telescope, so that the final image through L2 is seen at infinity?
Asked by adhithiashok
3rd March 2018
8:55 AM
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CBSE XII Science Physics Ray Optics and Optical Instruments
discuss about the qualitative Idea resolving power of astronomical telescope
Asked by ap996969
23rd January 2019
6:01 PM
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CBSE XII Science Physics Ray Optics and Optical Instruments
astronomical telesccope with full explaination
Asked by singhalakash8958
3rd March 2019
10:11 PM
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CBSE XII Science Physics
Draw a ray diagram of astronomical telescope and derive the formula of its magnifying power when final image is formed at the least distance of distinct vision
Asked by Harshsharma245101
9th October 2019
8:05 PM
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CBSE XII Science Physics Ray Optics and Optical Instruments
Is combination of a mirror and lens in syllabus of class 12?
Asked by govtsecschoolnayaganv051
24th February 2020
4:17 PM
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NEET NEET Physics
In magnification of telescope, when do we use fo/fe(1+fe/d) and fo/fe(1-fe/d)
Asked by rahulsamuel.a
25th June 2020
8:28 PM
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CBSE XII Science Physics Ray Optics and Optical Instruments
the magniuifying power of a telescope is 9. when it adjusted for parallel rays the didtance b/w the eye piece and objective lens is 20cm find the focal length of both lenses
Asked by akgujrati04
22nd August 2020
7:06 PM
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CBSE XII Science Physics
Q - 10
Asked by majethiyarishat9566.12sdatl
18th September 2020
12:57 PM
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CBSE XI Science Physics
hello mam please clarify this sum How can the resolving power of a telescope be increased? A telescope has an objective of focal length 50 cm and an eyepiece of focal length 5 cm. The least distance of distinct vision is 25 cms. The telescope is focused for distinct vision on a scale 200 cms away from the objective. Calculate (i) the separation between objective and eyepiece (ii) the magnification produced.
Asked by seeni2005
12th January 2021
9:32 PM
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CBSE X Physics Light - Reflection and Refraction
why are telescopes launched in space ? explain in brife about the hubble telescope launched in space
Asked by yashsingh2443
1st August 2021
6:53 PM
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CBSE XII Science Physics Wave Optics
Two stars distant two light years are just resolved by a telescope. The diameter of the telescope lens is 0.25 m. If the wavelength of light used in 5000A0, then the minimum distance between the stars is
Asked by sirib942254
4th August 2021
8:30 PM
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CBSE XII Science Physics Ray Optics and Optical Instruments
derive the expression for the magnifying Power and the length of a compound microscope using two convex lenses.
Asked by kamleshstarone392
16th April 2022
6:26 AM
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Maharashtra IX Physics
GMRT ?
Asked by thanekarkasturi
20th February 2023
1:26 AM
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NEET NEET Physics Optics
a telescope has an objective lens of focal length 150cm and an eyepiece of focal length 5cm.if his telescope is used to view a 100m high tower 30km away,find the height of final image when it is formed 25cm away from the eyepiece
Asked by hibasherinichu
23rd December 2023
7:02 AM
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