Answer:
Object should be placed at a distance, u = 7.8 cm
Given:
focal length of convex lens, F = 16.5 cm
magnification, m = 1.90
Solution:
Magnification of lens, m = -
where
u = object distance
v = image distance
Now,
1.90 =
v = - 1.90u
To calculate the object distance, u by lens maker formula given by:
u = 7.8 cm
Object should be placed at a distance of 7.8 cm on the axis of the lens to get virtual and enlarged image.
<u>Answer:</u>
The path followed = sun to sky to balloon to eyes
<u>Explanation :</u>
The sun gives light which reaches the sky i.e atmosphere of the earth and gets scattered , after scattering the light from the sky touches the balloon and thus coming from various directions after scattering, it touches the balloon at various points and gets reflected and then reaches our eyes and thus makes the hot air balloon visible to us.
Hence,this is the path followed by the light in order for us to see the brightly colored hot air balloon in a sunny sky and it's individual colors.
A) travel outside the necleus
Why do teachers give such hard questions? anyways hopefully your question will get answered! (btw i also need the points but yeah gl!!!)
C) Y is the strongest point in the electric field.