Question
Which type of mirror is used by dentists to see large
images of patients' teeth?Solution
Dentists use concave mirrors to see teeth and other areas in the mouth. This is because a concave mirror forms a virtual, erect and enlarged image when the object is placed within focus.
More Previous Year Paper Questions
15.232 + 39.98% of 539.99 = ? × 6.99
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
45.22% of (71.9 x 5.01) + 69.97 =?
14.2% of 7200 + 2.8% of 6400 =?
619.97 ÷ 20.01 X 124.99 ÷ 24.91 = ?
If a:(b+c) =3:9 and c:(a+b) =10:14 then find the value of b:(a+c)?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
98.999 x 99.001 + 640.856=?
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