Printed textbook model paper

What is the approximate speed of sound in air?

ہوا میں آواز کی تقریباً رفتار کیا ہے؟

1. (a)

   150 m s⁻¹

   150 m s⁻¹

2. (b)

   330–350 m s⁻¹

   330–350 m s⁻¹

3. (c)

   500 m s⁻¹

   500 m s⁻¹

4. (d)

   1,000 m s⁻¹

   1,000 m s⁻¹

Independent study material · English-medium textbook p. ii · Original book ↗