Examlex
A beam of light having frequency greater than the threshold frequency shines on a metal surface.By increasing the frequency of this light,you increase the number of photoelectrons emitted per second from this metal.
Female
Refers to the sex of an organism, or part of an organism, that typically has the capacity to bear offspring or produce eggs.
Age Group
A category of people defined by a range of ages, often used in research and demographics.
Probability
The estimation of an event's likelihood, depicted as a numeral between 0 and 1.
Club Sandwich
A sandwich typically made with three slices of bread and filled with ingredients such as poultry, bacon, lettuce, tomato, and mayonnaise.
Q8: In the figure above,the external force P
Q9: If the electric field strength is 900
Q16: Modern nuclear bomb tests have created an
Q19: You are in a train traveling on
Q22: The components of vectors <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2706/.jpg" alt="The
Q23: When a voltage difference is applied to
Q23: The word "laser" is taken from Light
Q25: Find the energy (in eV)of an optical
Q34: A falling body accelerates downward until the
Q45: You push downward on a trunk at