Optics — Class 11 Maharashtra HSC Physics revision notes
A 5-page visual revision sheet for Optics, written for Class 11 Maharashtra HSC Physics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Optics sheet covers
- Light, and the four laws behind ray optics
- Cartesian sign convention
- Multiple images between two inclined mirrors
- Spherical mirrors
- focal length, radius of curvature
- mirror formula
- lateral magnification
- focal power, in dioptre
- An extended object along a concave mirror's axis
- Spherical aberration
- Refractive index, and real vs apparent depth
- absolute refractive index
- relative refractive index, medium 2 with respect to 1
- looking down through a plane surface into a denser medium
- A crane, a fish, and apparent depth both ways
- Total internal reflection
- Critical angle and refraction at a spherical surface
- critical angle, denser medium of relative index n
- one spherical surface, media n_1 then n_2, radius R
- Where total internal reflection is put to work
- Optical fibre
- Prism binoculars
- Periscope
- Diamond
- Thin lens formula and lensmaker's equation
- thin lens formula
- lensmaker's equation
- lenses in contact
- Prism formula, thin-prism deviation, dispersive power
- at minimum deviation, i=e, r_1=r_2=A/2
- thin prism (A under 10 degrees), deviation is constant
- dispersive power, extreme colours violet and red, yellow as mean
- Mirage
- Primary vs secondary rainbow
- Primary
- Secondary
- Lens aberrations, and the achromatic fix
- Magnifying power, the idea behind every optical instrument
- Simple and compound microscope
- simple microscope, image at infinity (minimum M)
- simple microscope, image at D (maximum M)
- compound microscope, normal adjustment
- Astronomical telescope, normal adjustment
- magnifying power
- length of the telescope
- Symbols
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Physics chapter by chapter against your real exam dates and free hours, and when the plan reaches Optics the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.