You wish to start a fire by reflecting sunlight from a mirror onto some paper under a pile of wood. Which would be the best choice for the type of mirror?

a) flat

b) concave

c) convex

answer

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Sagar YadavLv10

30 Nov 2020

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Related questions

show that when an object is very far from a mirror compared withits focal length is always formed at the focal point of the mirorin less than 500 words and 3800 characters including spaces.

for which type of mirro will the image be erect, and which typewill it be inverted?
choices
a) for a convex mirror the image is inverted
B) for a convex mirror rhw image is inverted
C) for a convex mirror the image is erect
D) For a concave mirror the image is erect
answer a and d , a and b , B and C, B and D, or answer notdisplayed

25) A negative magnification for a mirror means that

A) the image is upright, and the mirror could be either concave or convex.

B) the image is inverted, and the mirror is concave.

C) the image is inverted, and the mirror could be either concave or convex.

D) the image is upright, and the mirror is convex

E) the image is inverted and the mirror is convex.

26) An object is placed in front of a thin lens, Which statements are correct in describing the image formed by the lens? (There could be more than one correct choice.)

A) If the lens is convex, the image must be real.

B) If the image is real, then it is also inverted.

C) If the image is real, then it is also upright.

D) If the lens is convex, the image will never be virtual.

E) If the lens is concave, the image must be virtual.

27) When a beam of light, originally travelling in air, enters a piece of glass having an index of refraction of 3/2, its frequency

A) is unaffected

B) is reduced to 2/3 its original value.

C) increased by a factor of 3/2.

28) The index of refraction of a type of glass is 1.50, and the index of refraction of water is 1.33. If the light enters water from the glass, the angle of refraction will be

A) equal to the angle of incidence.

B) less than the angle of incidence.

C) greater than the angle of incidence.

29) Which of the following terms describe lenses that are thinner at the center than the edges? (there could be more than one correct choice.)

A) concave lenses

B) converging lenses

C) diverging lenses

D) convex lenses

30) You may have seen ambulances on the street with the letters of the word AMBULANCE written on the front of them, in such a way to appear correctly when viewed in your car's rear-view mirror. (See the figure.) How do the letters appear when you look directly at the ambulance (not through the mirror)?