Light Reflectio...

The magnification of plane mirror is:

Which colour in the visible region has the greatest speed in a optically denser medium?

How does the frequency of a beam of ultra-violet light change when it goes from air into glass?

When two prism, one up and one down in contact receive white light. What is the colour of light that will emerge out?

In what direction does a ray of light bend, as it travels from a denser to a rarer medium?

According to snell’s law, $n_{21}\times n_{12} =$?

Virtual, erect and diminished image are the characteristic features of a:

What is the value of speed of light in free space?

Which type of mirror is used in ophthalmoscope to examine throat and ear?

What colour will we get while mixing blue with green?

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

Where will the image be formed if the object is at the focus of the concave mirror?

A convex lens is:

If the angle of incidence is $90°$, what is the angle of refraction?

A convex lens has a focal length of 40 cm. Calculate its power.