Ray Optics and Optical Instruments Flashcard

Front

What is the wavelength range of light as defined in the text?

Back

400 nm to 750 nm

Front

What is the approximate speed of light in vacuum?

Back

3 × 10^8 m/s

Front

According to Newton's corpuscular model, what are corpuscles?

Back

Massless elastic particles

Front

What is the relationship between the focal length (f) and the radius of curvature (R) of a concave mirror?

Back

f = R/2

Front

What is the angle of incidence equal to when light reflects off a smooth surface?

Back

Angle of reflection

Front

What is the formula for the mirror equation?

Back

1/f = 1/v + 1/u

Front

What happens to the image formed by a convex mirror?

Back

It is virtual and erect

Front

What is the refractive index of water as mentioned in the text?

Back

1.33

Front

What is the critical angle for total internal reflection?

Back

The angle of incidence for which the angle of refraction is 90°

Front

What is the power of a lens with a focal length of 50 cm?

Back

0.5 D