2. Here, ray created from Coolie's tube is slanted when it goes by metal. Here,
3. In a lab, Rayhan inflicted light perpendicularly on a diffraction grating with width. He assumed that he would see 9 points.
4. In the figure, a particle with mass and charge enters the magnetic field with velocity:
5. Coffee in a coffee pot is shaked strongly by a stirrer. As a result the volume of the coffee is increased by an amount of . An amount of heat was exerted from the coffee by the conduction of heat and by the correction of heat at the same time. [Atmospheric pressure, ]