Vanshika's teacher has made four setups in her class. In which of the following setups, will the students be able to see a bright patch of light on the screen?
A
B
C
D
oh well didnt understand this
Vanshika's teacher has made four setups in her class. In which of the following setups, will the students be able to see a bright patch of light on the screen?
A
B
C
D