Question: Q. 8. Mrs. Rajlakshmi had a sudden fall and was thereafter unable to stand straight. She was in great pain. Her daughter Rita took her to the doctor. The doctor took a photograph of Mrs. Rajlakshmi’s bones and found that she had suffered a fracture. He advised her to rest and take the required treatment.
(a) Name the electromagnetic radiation used to take the photograph of the bones.
(b) How is this radiation produced?
(c) Mention the range of the wavelength of this electromagnetic radiation.
(d) Write two values displayed by Rita.
R [CBSE Comptt. I 2018; O.D. I, II, III 2016]
Show Answer
Solution:
Ans. (a) Name of e.m. radiation $1 / 2$
(b) Method of production $1 / 2$
(c) Range of wavelength 1
(d) Two values $1+1$
(a) X-rays $1 / 2$
(b) By using X-rays tubes $1 / 2$ (Alternatively By bombarding a metal target with high energy electrons)
(c) Wave length range of $X$-rays is from $(1.0 \mathrm{~nm}$ to $1.0 \mathrm{pm} / 1$
(d) Alertness, empathy; concern for her mother, knowledgeable (any two)
$1+1$
[CBSE Marking Scheme 2018]
Noie for the Students
This was part of value based question. This section is removed now. However part- $a, b$ and $c$ of this question may come in Short Answer Type-II Questions.
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