You can use the displacement method or the eureka can so basically in the displacement can what you have to do is to put some water into a measuring cylinder and measure its volume before adding the irregular shaped object and then measuring the level of water which had been displaced and then eureka can you can check online
Answer:
Uhhhhh? can u explains? lol
Answer:
Explanation:
Given
Two masses
and
is released and there is tension T in the string
Suppose a is the acceleration of the system
Therefore from Diagram
For 

------1
for m_2 body

-------2
From above two Equation it is said that Tension is greater than m_1g and less than m_2g

Answer:
Explanation:
Expression for time period of pendulum is given as follows

where l is length of pendulum and g is acceleration due to gravity .
Putting the given values for first place

Putting the values for second place

Dividing these two equation

T = 2.66455 s.