easy-watermark domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/u223937191/domains/scienceworksheets.co.uk/public_html/wp-includes/functions.php on line 6170Practice Question
1.State the definition of Electromagnetic waves.
Electromagnetic waves are transverse waves that transfer energy from the source of the waves to an absorber.
2. A radiowave and a visible light ray are emitted from the same point on the Earth, both travel in the same direction. Which one will reach their destination first?
Neither, they will both reach their destination at the same time. This is because electromagnetic waves travel at the same speed in air.
3. What is the relationship between wavelength and frequency in the electromagnetic spectrum?
As frequency increases, wavelength decreases.
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans