List of top Questions asked in UP Board

(i) Clarify the meaning of power of accommodation of eye lens of human eye. Where is the image formed by the eye lens?
(ii) Show ray diagram for the refraction of a light ray through a prism and point out the emergent angle and angle of deviation.
(i) State Ohm's law. What will be the value of current and potential difference at the ends of each resistance in the given circuit?
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(ii) What do you understand by the heating effect of electric current? In a heater of resistance \(10 \, \Omega\), a current of \(15 \, \text{A}\) is flowing for 30 minutes. What will be the amount of heat produced in the heater?
(i) Mention any two properties of magnetic field lines.
(ii) Mention two factors which affect the magnetic field produced by a straight current carrying conductor.
Which of the following is an animal hormone?
The technique of producing many plants from a single plant under infection-free condition is called—
Chlorophyll is important
Physical factor of ecosystem is:
Which of the following is top carnivore?
(i) Show the image formation by a convex mirror by ray diagram when the object is at infinity and
(a) at infinity
(b) in between pole of the mirror and infinity
Formula for Baking Soda is:
Unsaturated hydrocarbon from the following is:
The bond in diatomic molecule of Nitrogen is:
Homologous series among the following is:
A six carbon molecule, Glucose is broken down into a three carbon molecule, Pyruvate. This process takes place:
Dialysis is related to:
Two resistances each of 10 ohm are connected in parallel. A battery of 10 V is connected with this combination. Amount of charge flowing per second will be -
Match the physical quantities given in Column A with the units given in Column B and choose the correct option:
\[\begin{array}{|c|c|} \hline Column A & Column B \\ \hline \text{(1) Electrical resistivity} & \text{(i) Coulomb} \\ \hline \text{(2) Electric potential difference} & \text{(ii) Watt-hour} \\ \hline \text{(3) Electrical energy} & \text{(iii) Joule per coulomb} \\ \hline \text{(4) Electric charge} & \text{(iv) Ohm-meter} \\ \hline \end{array}\]
Two coils of copper wire are placed closer to each other. Due to change in the value of current in one coil, current starts to flow in the other coil. Reason for this phenomenon is -
Complete the following chemical equation:
\(\underline{\hspace{2cm}}\) + CO_2 \rightarrow \text{CaCO}_3 + \text{H}_2\text{O}
Chemical reaction:
\text{Fe(s) + CuSO}_4\text{(aq)} \rightarrow \text{FeSO}_4\text{(aq)} + \text{Cu(s)}
What type of reaction is this?
A lemon placed in a beaker full of water appears larger than its real size, when viewed sideways. The light phenomenon responsible is -
Range of clear vision of a normal eye is -