correct the answer and give me the explanation on it An object is placed at a kn

Question

correct the answer and give me the explanation on it

An object is placed at a known distance in front of a mirror whose focal length is also known. You apply the mirror equation and find that the image distance is a negative number. This result tells you that (a) the image is rea (b) the image is inverted relative to the object. (c) the image is larger than the object the image is smaller than the object. the image is virtual. 6. Suppose you stand in front of a spherical mirror (concave or convex). Is it possible for your image to be (1) real and upright (2) virtual and inverted? (a) (1) Yes. (2) Yes. (1) Yes. (2) No. (c) (1) No. (2) Yes. Kd)(1) No. (2) No (e) Not enough information given to correctly answer this question 7. The table lists the index of refraction for various substances at 20 °C for light with a wavelenoth of5RO. in a vacuum. Through which substance will light with a vacuum wavelength of 589 nm greatest speed? Subslancg (a) Fused quartz thyl alcohol glass fused quartz ethyl alcoho cTown glass carbon tctrachloride crysialline quartz. at 1.458 1.362 1.520 rown d) Carbon tetrachloride (e) Crystalline quartz 1.461 1.544 whichoneofthe following expressions determines the crtical angle for quartz (n=15)n mersed in oil (n 8 1,1)?

Explanation / Answer

If the image distance is negative the image is virtual

magnification m = -s'/s

s' is negative

magnification is positive

for virtual images the magnification is positive

===========================

for concave mirror

image distance is either positive or negative

for real image , distance is positive

magnification is negative and inverted

for virtual image , distacne is negative

magnification is positive and upright

for convex mirror the image distance is negative

image is virtual and upright

(1) No (2) NO

=================================

speed of light in substance = v = c/n

speed is greates if n is smaller

In the table given the ethyl alchohol has least value

Ethyl alchohol <<<---ANSWER

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.