Which phenomenon shows the particle nature of light?
The nucleus of an atom consists of:
The photoelectric effect proves that light has:
The smallest particle of an element that can take part in a chemical reaction is:
The mass number of an atom is the sum of:
The device used to accelerate charged particles is called a:
The unit of radioactivity is:
Which of the following particles has no charge?
The first artificial satellite was launched by:
Which of the following has the shortest wavelength?
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