Question Text
Question 1 :
The volume of a 500g sealed packet is $350 cm^{3}$. Will the packet float or sink in a saturated salt solution, if the density of the solution is $1.2 g cm^{–3}$ ?
Question 3 :
Mention whether writing with hand is on the basis of voluntary or involuntary muscles.
Question 4 :
Mention whether the statement is true or false.
Hybridisation means crossing between genetically dissimilar plants.
Question 7 :
Mention whether the statement is true or false.
Manure increases the water holding capacity of sandy soil.
Question 8 :
Mention whether movement of chocolate in your intestine is on the basis of voluntary or involuntary muscles.
Question 9 :
In a sample of ethyl ethanoate $(CH_3COOC_2H_5)$ the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?
Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2a0f59b460d7261f5f3.JPG' />
In the above figure, velocity versus time graph of a ball of mass 50 g rolling on a concrete floor is shown. Calculate the acceleration of the ball.