If the galvanometer G does not show any deflection in the circuit shown, the value of R is given by:

The ratio of frequencies of fundamental harmonic produced by an open pipe to that of a closed pipe having the same length is:

Light travels a distance x in time t_1 in air and 10x in time t_2 in another denser medium. What is the critical angle for this medium?

If $\oint \mathbf{E} \cdot d\mathbf{S} = 0$

Pumice stone is an example of

Which of the following statements are NOT correct? A. Hydrogen is used to reduce heavy metal oxides to metals. B. Heavy water is used to study reaction mechanism. C. Hydrogen is used to make saturated fats from oils. D. The H-H bond dissociation enthalpy is lowest as compared to a single bond between two atoms of any element. E. Hydrogen reduces oxides of metals that are more active than iron. Choose the most appropriate answer from the options given below.

The given compound CH=CH−CH−CH_2−CH_3 | X Is an example of____

Match List-I with List-II List - I A. Coke B. Diamond C. Fullerene D. Graphite List - II I. Carbon atoms are sp³ hybridised. II. Used as a dry lubricant III. Use as a reducing agent IV. Cage like molecules Choose the correct answer from the options given below:

In Lassaigne’s extract of an organic compound, both nitrogen and sulphur are present, which gives blood red colour with $Fe^{2+}$

How many ATP and NADPH2 are required for the synthesis of one molecule of Glucose during Calvin cycle?

Large, colourful, fragrant flowers with nectar are seen in:

The phenomenon of pleiotropism refers to

Frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes to map their position on chromosome, was used for the first time by

Given below are two statements: $\newline$Statement I: The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height. $\newline$