Physics - Study Mode

[#1131] Formation of shadows can be explained by
Correct Answer

(A) Rectilinear propagation of light

Explanation

Solution: Formation of shadows can be explained by rectilinear propagation of light.

[#1132] The locomotion of insects to the source of light is called :
Correct Answer

(A) Phototropic

Explanation

Solution: The locomotion of insects to the source of light is called Phototropic.

[#1133] Which is an example of Phototropism?
Correct Answer

(B) Plant bending toward the light

Explanation

Solution: Sunflowers are a great example of positive phototropism, because not only do their stems curve toward the light but their flowers turn to face the sunlight as well.

[#1134] Light travels fastest in
Correct Answer

(A) Air

Explanation

Solution: Light travels fastest in air.

[#1135] Light travels slowest in
Correct Answer

(A) Glass

Explanation

Solution: The indexes of refraction for diamond, air and glass are, respectively, 2.42, 1.00, and approximately 1.50, depending upon the composition of the glass. Light travels slowest in diamond.