** Geometrical Optics **

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** Demo Video **

**All Lectures **

**Lect # 1**

**Content Covered:**

law of rectilinear propagation of light, Law of independence of light rays, Law of reversibility, Laws of reflections, types of reflection, regular and diffused reflection, Plane mirror, definition of Object and Image, virtual and real Object/Image. Image formation by plane mirror, Important points about Image formation by plane mirror, motion of object and its Image

**Duration:**52 Minutes

**Lect # 2**

**Content Covered:**

Problems on motion of object and image in 3D, Rotation of Mirror and Incident ray

**Duration:**46 Minutes

**Lect # 3**

**Content Covered:**

Problems , Images formed by two mutually inclined mirrors, field of view-

**Duration:**50 Minutes

**Lect # 4**

**Content Covered:**

Problems, Angle of deviation due to reflection

**Duration:**16 Minutes

**Lect # 5**

**Content Covered:**

Curved mirrors, some definitions (terms) related with curved mirrors. Paraxial rays, focal plane.

**Duration:**42 Minutes

**Lect # 6**

**Content Covered:**

sign conventions, Mirror formula, magnifications

**Duration:**28 Minutes

**Lect # 7**

**Content Covered:**

ray diagram

**Duration:**28 Minutes

**Lect # 8**

**Content Covered:**

problems, some examples, multiple reflections

**Duration:**34 Minutes

**Lect # 9**

**Content Covered:**

motion of object and image, lateral magnifications

**Duration:**46 Minutes

**Lect # 10**

**Content Covered:**

1/v versus 1/u graphs, U-V graphs, Newton’s mirror formula

**Duration:**59 Minutes

**Lect # 11**

**Content Covered:**

Refraction, Refractive index, Snell’s laws, some important points to remember, refraction through plane surface and parallel slabs.

**Duration:**46 Minutes

**Lect # 12**

**Content Covered:**

Image formation due to refraction through plane surface, actual depth and apparent depth, problems

**Duration:**41 Minutes

**Lect # 13**

**Content Covered:**

Lateral shift, Normal shift, combination of mirror and slabs

**Duration:**42 Minutes

**Lect # 14**

**Content Covered:**

critical angle, total internal reflection, circle of illuminance, deviation due to refraction through plane surface

**Duration:**40 Minutes

**Lect # 15**

**Content Covered:**

Prsim, Prism angle, angle of emergence, deviation by prism, condition for no emergence, angle of deviation by prism in terms of angle of incidence and angle of emergence. Condition for minimum deviation, minimum deviation

**Duration:**41 Minutes

**Lect # 16**

**Content Covered:**

maximum deviation,thin prisms, deviation by thin prism

**Duration:**23 Minutes

**Lect # 17**

**Content Covered:**

Cauchy’s equation, dispersion, mean deviation, angular dispersion, Dispersive power of Prism, combination of Prisms, Achromatic combination ,combination for direct vision

**Duration:**54 Minutes

**Lect # 18**

**Content Covered:**

Refraction through curved surface, formula relating “v” and “u”,

**Duration:**27 Minutes

**Lect # 19**

**Content Covered:**

Problems lateral and longitudinal magnification, motion of object and image.

**Duration:**27 Minutes

**Lect # 20**

**Content Covered:**

Thin lenses, classification of thin lenses, Lens maker’s formula and Lens formula-

**Duration:**35 Minutes

**Lect # 21**

**Content Covered:**

lateral and longitudinal magnification, Ray diagrams,

**Duration:**28 Minutes

**Lect # 22**

**Content Covered:**

sign convention, Image formation, Problems,

**Duration:**45 Minutes

**Lect # 23**

**Content Covered:**

problems , some important points to remember

**Duration:**28 Minutes

**Lect # 24**

**Content Covered:**

motion of Object and image, , 1/v versus 1/u graphs, U-V graphs-

**Duration:**39 Minutes

**Lect # 25**

**Content Covered:**

power of lens, combination of lenses in contact. Combination of two lenses separated by distance “d”, combination of lenses and mirror in contact, focal length when one face of a thin lens is silvered

**Duration:**56 Minutes

**Lect # 26**

**Content Covered:**

Displacement method to find the focal length of a lens,

**Duration:**15 Minutes