Ánh sáng trắng có cường độ đồng đều trong vùng bước sóng từ 430 nm đến 690 nm chiếu vuông góc lên một bản mỏng nước có chiết suất 1,33 và độ dày
320 nm lơ lửng trong không khí. Hỏi bước sóng nào của ánh sáng phản xạ từ bản
mỏng là mạnh nhất đối với người quan sát ?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.