Question

Depression on sand is more when you are standing than when you are lying down, because.

• A. In standing position, for equal thrust, area is smaller so pressure is more
• B. In lying position, more area is involved so thrust is less and pressure is more
• C. Thrust is more in standing position
• D. Centre of gravity lowers down while lying down, so pressure is more

Answer 1

The correct option is A In standing position, for equal thrust, area is smaller so pressure is more

• When there is more pressure then area become less and
• When there is less pressure then area is more.

Hence, depression on sound is more when we are standing then when we are laying down because in standing position, if we require equal thrust, area is smaller so pressure is more.

Hence, Option A is correct.