Question

5. Light waves

a. Require air or another gasto travelthrough

b. Require anelectric fieldtotravelthrough

c. Require amagnetic fieldtotravelthrough

d. Can travel through perfect vacuum

6. Anobjectisplaced40.0cminfrontofaconvexmirror. The image appears 15 cmbehind themirror.What is the focal

length of the mirror?

a. + 24 cm b. + 11 cm c. – 11 cm d. – 24 cm​

Answer 1

Answer:

light waves , heat waves , x-rays are the examples of electromagnetic waves , which donot require any medium for their propagation .

so the answer is A,B and C.

Answer 2

Explanation:

a. require air or another gusto travel through