The image formed by convex lenses are a) always inverted. b) always real. c) non
ID: 1622358 • Letter: T
Question
The image formed by convex lenses are a) always inverted. b) always real. c) none of the above. d) always upright. e) always virtual. An astronaut is on a spaceship. After the velocity of the spaceship has increased from rest to 0.5c, the astronaut would observe a) that her mass has increased. b) all of the given answers c) that the length of her spaceship has decreased. d) that her precision clock runs slower than normal. e) none of the other answers If in a double-slit experiment the slit separation is increased, which of the following happens to the interference pattern shown on the screen? a) The maxima stay at the same position. b) The minima and maxima stay at the same position. c) The maxima get further apart. d) The minima get closer together. e) The minima stay at the same position.Explanation / Answer
2) correct options are (a) , (b)
3) correct options are (a),(c),(d)
L = Lo/gamma, m = mo*gamma , T = To*gamma
gamma >1
4) correct options is (c)
d sin(Theta) = n*lamda
y = n*lamda*D/d
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