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CBSE class 12 physics telescope notes
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A telescope is an optical instrument that magnifies distant objects, making them clearer and easier to observe. In Class 12 CBSE Physics, telescopes are studied in the context of their design and functioning. The two main types are refracting telescopes, which use lenses to focus light, and reflect...

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Document information

  • September 20, 2024
  • 15
  • 2022/2023
  • Class notes
  • Dharmendra kumar
  • All classes

Subjects

  • physics class 12
  • telescope class 12
  • cbse class 12
  • physics class 12 telescope

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  • Secondary school
  • 1237
  • 1
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TELESCOPE
A Telescope is an optucal instrument ohich
enables uA o distant_objecs cleasly

9t pmvides anqulat maqnificatíon d the
_diutantt okgect.
TpES of TELESCDPE

TELEsCOPE

REFRACTING. REFLECTING
TYPE TPE

ASTRONOMICAL TERRESTRIA L
TE LESCOPE TELESCOPE

NEWTONLAN CASSERAIN
LTELESCOPE TYPE TELESCOPE
1 ASTRONOMICAL TELESCOPE

Thi telescope i e d tsee heavenly bbgect
Lixe moon, distant stass, Aun and P{nets etc.
*The imageformed by telescope_is vitual &
netedSince theheavenlg bodies_aze almost

, kDunds 0 the inveted image doesnot akbect
the o bsezvation

Construction
9t consisti two coneging Ctonvex) lenses
mounted co-axiallp at the outez ends d twd
Aliding tubes. O


helensfacing he obrect i calUled "obrecfive
and it_ has large _abetne lasze focal lensth
The othez. lens hraugh which the image_
ohsewed Called e ebiece 9t is hall
apeue and Amallfocallength 9t faces the eye

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