20. A concave mirror in an amusement park has a radius of curvature of 4.0m . A
ID: 1298716 • Letter: 2
Question
20. A concave mirror in an amusement park has a radius of curvature of 4.0m . A child stands in front of the mirror so that she appears 2.5 times taller than her actual height . if the image is upright, how far is she standing from the mirror? A diver shines an underwater searchlight at the surface of a pond (n = 1.33) At what angle (relative to the surface) will the light he totally reflected' a. 64.3 degree h 57.2 degree c. 52.1 degree d. 45.7 degree c. 41.2 degree 22. (1 petit) An object is placed 50.0 cm in front of a lens whose focal length is 5.00 cm. flan will the image be located (in cm)? .3. 15.1 h. 10.0 c. 5.6 d. 73 c. 43 23. peso Light is incident on a double-slit The fourth bright bond is at 7.0 degree from the mama maximum, What is the distance between the slits (in Mu m) = the frequency of the light is 5.4 . 10^14 Hz) a. 18 b. 21 c. 24 d. 32 e. 44Explanation / Answer
the answers are
20 -a actual answer is 2.8 cm but no option closest one is a
21-d
22-c
23-b the answer is 2.8 mico meteres but ....
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.