Light and Migratory birds

Which of the following is NOT a property of light?

• Reflection

• Refraction

• Absorption

• Compression

Answer explanation

Compression is not a property of light. It refers to the compression and rarefaction of waves in a medium, such as sound waves, but not light waves.

What is the color of light with the longest wavelength?

• Red

• Green

• Blue

• Violet

Which type of lens is used to correct nearsightedness?

• Convex lens

• Concave lens

• Biofical lens

• Poptej lens

Answer explanation

A concave lens is used to correct nearsightedness (myopia) by diverging the light rays before they enter the eye, thus helping to focus the image properly on the retina.

What happens to light when it passes through a prism?

• It gets absorbed by the prism.

• It reflects off the prism's surface.

• It splits into different colors.

• It slows down significantly.

Answer explanation

When light passes through a prism, it splits into different colors. This phenomenon is known as dispersion.

The phenomenon of light bending as it passes from one medium to another is known as:

• Reflection

• Dispersion

• Refraction

• Diffraction

Which of the following is a primary reason why birds migrate?

• To find mates

• To escape predators

• To search for food

• To establish territories

Which of the following cues do birds primarily use for navigation during migration?

• Visual landmarks

• Magnetic fields

• Celestial cues

• Chemical scents

Which of the following is the longest recorded non-stop migratory flight by a bird?

• 1,000 miles

• 3,000 miles

• 5,000 miles

• 8,000 miles

Which hemisphere do most migratory birds breed in during the summer months?

• Northern Hemisphere

• Southern Hemisphere

• Eastern Hemisphere

• Western Hemisphere

Which of the following is an example of a long-distance migratory bird?

• Bald Eagle

• Penguin

• Albatross

• Blue Jay