Question

Q1. A brick having a surface area of 25cm x 10cm is lying on the ground. If it weighs 24 N, find the pressure exerted by the brick on the ground.

Q2. How many images are formed by two plane mirrors when they are kept at an angle of: a)90 degree b)60 degree c)45 degree

Q3. Why copper vessels are coated with a greenish deposit when exposed to moist air? Support your answer with a chemical equation.


kindly help!!

Answer 1

Explanation:

Pressure = Force / Area

= 24 N / (0.25 m × 0.1 m)

= 24 N / 0.025 m²

= 960 N/m²

= 960 pascal

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For second answer, refer image attached

Answer 2

Pressure = Force / Area

= 24 N / (0.25 m × 0.1 m)

= 24 N / 0.025 m²

= 960 N/m²

= 960 pascal