Properties of Light

Noor, a young student, was trying to demonstrate some properties of light in her Science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter-paper screen to see the spots of light being cast as they emerged. If the object inside the box was made of a material with a refractive index less than 1.5 then the

Noor, a young student, was trying to demonstrate some properties of light in her Science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter-paper screen to see the spots of light being cast as they emerged. She measured the angles of incidence for both the rays on the left side of the box to be 48.6^(@) . She knew the refractive index of the material ‘X’ inside the box was 1.5. What will be the approximate value of angle of refraction? (use the value: sin 48.6^(@) ~~ 0.75 )

Noor, a young student, was trying to demonstrate some properties of light in her Science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter-paper screen to see the spots of light being cast as they emerged. Her friend noted the following observations from this demonstration: i. Glass is optically rarer than air. ii. Air and glass allow light to pass through them with the same velocity. iii. Air is optically rarer than glass. iv. Speed of light through a denser medium is faster than that of a rarer medium. v. The ratio: sin of angle of incidence in the first medium to the ratio of sin of angle of refraction in the second medium, gives the refractive index of the second material with respect to the first one. Which one of the combination of the above statements given below is correct.

Nature Of Light|Properties Of Photon|Questions|Electron Emission

Nature Of Light|Properties Of Photon|Questions|Electron Emission

Interference is an important property of light. In the given table, Column I shows the properties of interfering waves, Column II shows the phase difference, and Column III shows the path difference between two interfering waves What are the conditions for constructive interference?

Interference is an important property of light. In the given table, Column I shows the properties of interfering waves, Column II shows the phase difference, and Column III shows the path difference between two interfering waves What are the conditions for destructive interference?