Which of the following statements is false?
2 answers:
A & B
Observe the path of the light ray as it passes through the lenses as shown in the attached images. Concave lenses diverge light rays while the convex lens converges the light rays.
Explanation:
Real images are formed where the rays converge, a property of images by convex lenses. Convex lenses can be used to magnify objects. If the image occurs before the focal point of the lens then the image will be upright but smaller. The images inverts and gets bigger past the focal point.
Virtual images are property of concave lenses. These images appear closer but smaller than the real object.
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Answer:
Explanation:
given,
mass of boy(m₁) = 40 kg
mass of the skateboard(m₂) = 2.50 kg
velocity of skateboard(V) = 5.30 m/s
speed of the boy(v₁) = 6 m/s at 9.50° above the horizontal
friction force is not acting in x-direction hence no we can apply conservation of momentum in x- direction
as the boy jumps over sidewalk skateboard cannot go through the sidewalk, there must be some force in the y direction so, momentum is not conserved.
negative sign represent velocity of the skateboard is in the opposite direction of boy.