Optics Answers

A student uses a launcher to fire Nerf darts horizontally from a height of 1.0 m and measures the distance the darts travel before they land. The average horizontal range of the darts is 6.5 m. Estimate the time the darts were in the air and from this, and estimate the launch velocity

Apply the concepts of light behaviours, refraction and image formation to explaining the physics of vision in the eye and the use of lenses to correct vision.

A transparent plastic has been developed. When light travels through it, it only travels at 3 × 107 m/s. What will be the refractive index of this new plastic?

A transparent plastic has been developed. When light travels through it, it only travels at 3 × 107 m/s. What will be the refractive index of this new plastic?

1. Apply the concepts of light behaviours, refraction and image formation to explaining the physics of vision in the eye and the use of lenses to correct vision

2. Briefly discuss the concept of total internal reflection and fibreoptics for data and light transmission in medical applications

3. Compare the properties of laser light beams to light beams from conventional sources (e.g. light bulb) and briefly discuss the significance of the differences.

1. Discuss the interactions between light photons and atoms at the surface of an object that result in selective absorption and reflection of visible light of specific frequencies.

2. Relate the apparent color of an object to the frequencies of light photons emitted or reflected from it

3. Discuss the interactions between light photons and atoms within an object that result in selective transmission of visible light 

what is the highest order spectrum which may be seen with monochromatic light of wavelength 6000A by means of a grating spectrum 5000per lines

What is grating element?

A multimode step-index has a relative refractive index difference of 2% and a core refractive index of 1.5. The Number of modes propagating at a wavelength of 1.3um is 1000. Calculate:

a) The cladding refractive index

b) Numerical Aperture

c) The diameter of the fiber core