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The resistance of an ammeter is 13 Ω and its scale is graduated for a current up to 100 A. After an additional shunt has been connected to this ammeter, it becomes possible to measure currents up to 750 A by this ammeter. The value of shunt resistance is:
The correct order for the rate of $\alpha, \beta$-dehydrohalogenation for the following compounds is:
In chloroplast, the highest number of protons are found in?
Which of the following is not a product of light reaction of photosynthesis?
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option:
A rectangular coil of length $0.12 \text{ m}$ and width $0.1 \text{ m}$ having $50$ turns of wire is suspended vertically in a uniform magnetic field of strength $0.2 \text{ Wb/m}^2$. The coil carries a current of $2 \text{ A}$. If the plane of the coil is inclined at an angle of $30^\circ$ with the direction of the field, the torque required to keep the coil in stable equilibrium will be:
Which of the following is an incorrect statement?
Match List-I with List-II: List-I (A) Chlorophyll a (B) Chlorophyll b (C) Xanthophyll (D) Carotenoids List-II (I) Yellow to yellow orange (II) Yellow green (III) Blue green (IV) Yellow
In leaves of C4 plants, malic acid synthesis during CO2 fixation occurs in:
Synthesis of ATP linked to development of a proton gradient across a membrane is:
The typical growth curve in plants is:
Which of the following oxide is amphoteric in nature?
One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of:
In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential $V$ and then made to describe semi-circular paths of radius $R$ using a magnetic field $B$. If $V$ and $B$ are kept constant, the ratio of $\left(\frac{\text{Charge on the ion}}{\text{Mass of the ion}}\right)$ $\left(\frac{q}{m}\right)$ will be proportional to:
Which out of the following statements is incorrect regarding photosynthetic mechanisms?
The process which makes a major difference between C3 and C4 plants is:
The photochemical phase of photosynthesis includes:
A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field B with the distance d from the centre of the conductor is correctly represented by the figure:
Which one of the following concerns photophosphorylation?
Study the pathway given below: In which of the following options, correct words for all the three blanks A, B and C are indicated?