I need help to solve the questions asap thank you Sadu (CCSU) Physics 122 . Test

Question

I need help to solve the questions asap thank you

Sadu (CCSU) Physics 122 . Test? Name Are the statements below True or False Correct them if False Convex mimors can form Real and Virtual images 2. Concave lenses only form enlarged. real images 3. A stamp collector uses a magnifying glass (convex lens) to look at a stamp located 2 2 cm from the lens. The stamp looks magnified four times. What is the focal length of the lens? a. 1.6 (cm) b. 1.6 (cm) c2.66 (cm) d 2,66 (m) 4. An objoct 3 cm high is placed 24 cm from a convex mirror having a focal length of 8 em. What is its magnification? a. 6(cm) b. 1.33 (cm) 0.25 d.4 5. Light of wavelength of 612.8 nm is incident on a diffraction grating having 6000 lines per em. At what angle from the central horizontal is the first order maximum located? a. 0.22 degrees b. o.35 degrees c. 22.3 degrees d.34 6 degrees 6. Light of wavelength 580 nm is incident on an opening that is 0.3 mmide. A screen is placed 2 m from the aperture Where is the location of the first dark fringe on the screen above the central maxima? a. 1.9 (mm) b. 3.8 (mm) 76(mm) d. 15.2 (mm) A convex lens has a focal length of 10 cm. An object is placed 20 cm from the lens. Where is the image located from the lens? 7. a. 5 (cm) b. 00 (em) 15 (cm) d. 20 (cm 8. In the above question, is the image real or virtual? Upright or inverted? Real and upright inverted b. Real and inverted . Virtual and upright d. Virtual and a. 9. In question (7), what is the magnification of the image? 0.5 b.1 1.5 d.2

Explanation / Answer

1. False.
Convex mirror can only form virtual image.

2. False

3.
M = -i/o
4 = -i/2
i = -8 cm

1/f = 1/2 - 1/8

f = 2.66 cm

Pls post other ques separately

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