A solar cooker and a pressure cooker both are used to cook food. Treating them as thermodynamic system, discuss the similarities and differences between them.

Pressure cooker reduces cooking time for food because

Observe garden plants like Cycas, christmas tree, hibiscus, Lilly, etc. and compare them. Note the similarities and differences between them. Which differences did you notice between gymnosperms and angiosperms?

Answer the following questions : Have you seen a photographic camera in which a film is used ? Compare the human eye with it . State similarities between them. State the points of difference between them.

Can you explain the thermodynamicsinvolved in cooking food using a pressure cooker?

Observe all garden plants like Cycas, Thuja, Pinus, Sunflower, Canna and compare them. Note similarities and dissimilarities among them. Which differences did you notice between Gymnosperms and Angiosperms?

Assertion: If two waves of same amplitude produce a resultant wave of same amplitude,then the phase difference between them will be 120 ^(@) Reason: The resultant amplitude of two waves is equal to vector sum of amplitudes treated as vectors

Use your brain power: Amar, Akbar and Anthony are travelling in different cars with different velocities. The distance covered by them during different time intervals are given in the following table. What is the time interval between the noting's of distances made by Amar, Akbar and Anthony?

Take three similar vessels . Let us call them A,B and C ( see figure below ) Fill A with hot water and B with cold water . Put some water from A and B in C . Dip you right hand in A and left hand in B , and keep them immersed for 2 to 3 minutes . Now dip both the hands in C .: What is the reason for this ? think about it .:

Take three similar vessels . Let us call them A,B and C ( see figure below ) Fill A with hot water and B with cold water . Put some water from A and B in C . Dip you right hand in A and left hand in B , and keep them immersed for 2 to 3 minutes . Now dip both the hands in C .: What do you feel ?: