Considering light at the two ends of the visible light spectrum, violet light has a wavelength and a photon energy than red light.
a. shorter, higher
b. longer, higher
c. longer, lower
d. shorter, lower

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

What happens when you slowly pulled the carboard?

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?