Do different species of plants growing in the same area, show the same rate of transpiration at a particular time? Justify your answer.

Atoms of two different elements are represented in the following diagram. Do these elements belong to the same group ? Justify your answer.

Consider a closed loop C in a magnetic field (figure shown ). The flux passing through the loop is defined by choosing a surface whose edge coincides with the loop and using the formula phi = B_1. dA_1 + B_2. dA_2 +....... . Now if we choose two different surfaces S_1 and S_2 having C as their edge, would we get the same answer for flux? Justify your answer.

Would you expect the first ionization enthalpies for two isotopes of the same element to be the same of different? Justify you answer.

Answer the following questions: The focal length of a concave mirror is 15cm. Where should on object be placed in front of this mirror so as to obtain an image which is real, inverted and of the same size as the object? Justify your answer.

Is it possible to distinguish between a raw egg and hard boiled egg by spinning each one on a table with same torque? Justify your answer.

Explain what do you understand by the de Broglie wavelength of an electron. Will an electron at rest have an associated de Broglie wavelength? Justify your answer.

Do two tuning forks of different frequencies kept on table produce same vibrations.

In given circuit diagram two resistors are connected to a 6V supply. A third resistor is now connected in a parallel with 6 Omega resistor will the potential difference across the 8 Omega resistor the larger, smaller or the same as before? Explain the reason for your answer.

To hear the echo distinctly,will the distance from the source of sound to the reflecting surface be same at all temperatures? Explain your answer.