Question

Fig. 10.64
29. In Fig. 10.65, BDC is a tangent to the given circle at point D such that BD = 30 cm and
CD = 7 cm. The other tangents BE and CF are drawn respectively from B and C to the
circle and meet when produced at A making BAC a right angle triangle.
Calculate (i) AF (ii) radius of the circle.
B
30 cm
o
30
D
E
7 cm
A
C
F 7
​

Answer 1

Answer:

The Bohr radius is consequently known as the "atomic unit of length". It is often denoted by a0 and is approximately 53 pm.

Step-by-step explanation:

Answer 2

Answer:

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