Which is not a possible shadow of this object?

The shadow of the coconut tree will change throughout the day, depending on the position of the sun. Look at the shadows formed at timings A, B and C. Which timings do these likely occur at?

Hint: Refer to the compass direction to guess position of sun creating the relevant shadows!

Construction workers wear the following vest with has a reflector, when working on the roadside at night. Why is this so? Select the only true statement.

Peter shines a torch on a bunch of grapes and its shadow is formed on a screen. How can he enlarge the shadow of the grapes? Select ALL possible answer(s).

Janet shines the torch through different liquids X, Y and Z and records the light that is able to pass through it.

If X allows the most light through it, and Z blocks the most light, which liquid (X, Y, Z) will have the highest reading for the datalogger?

The torch shines directly in a straight line to the wooden cone and frosted glass. Which do you think is the possible shadow formed on the screen?

Karen shines a torch at object A, which is made of 3 different materials X, Y and Z.

The shadow formed on the screen for these 3 materials is seen on the screen. Please select the correct materials for X, Y and Z.

When the rectangular block of wood is shifted from position 1 to 2, then 3 and 4, the shadow size will change. Which graph is correct?

Which one of the following objects could NOT have possibly formed the attached shadow formed?