The radiation that causes skin cancer is
A - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
Question 5
The radiation that causes skin cancer is
A. ultraviolet radiation
B. radio waves
C. microwaves
D. infrared radiation
(b) The word box contains the names of thre... show full transcript
Worked Solution & Example Answer:The radiation that causes skin cancer is
A - Edexcel - GCSE Physics - Question 5 - 2013 - Paper 1
Step 1
Skin cancer can be caused by radiation from the Sun.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The radiation that causes skin cancer is
A. ultraviolet radiation.
Step 2
Use this diagram to classify the three types of radiation given in the word box.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Gamma rays belong in the section for ionising radiation. Infrared radiation belongs in the section for electromagnetic radiation but does not ionise. Alpha particles also belong in the section for ionising radiation.
Step 3
Which of these is correct for all electromagnetic waves in a vacuum?
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
C. they are transverse waves.
Step 4
Describe a use of gamma radiation.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Gamma radiation is commonly used in medical applications, such as the treatment of certain types of cancer through radiotherapy. It helps to kill cancer cells while minimizing damage to surrounding healthy tissue.
Step 5
Explain how the results of the experiments carried out by Herschel and Ritter led to these discoveries.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Herschel measured temperature variations across the spectrum of light and found that it increased, indicating the presence of infrared radiation beyond the visible spectrum. Ritter's experiment involved using silver chloride paper, which darkened more quickly when exposed to light beyond the violet end, indicating the presence of ultraviolet radiation. Together, their findings showed that there are types of radiation beyond the visible spectrum, leading to the discoveries of infrared and ultraviolet radiation.
