List of top Questions asked in UP Board X- 2023

Asexual reproduction takes place through budding in:
The autotrophic mode of nutrition requires:
A person suffering from short-sightedness can see up to 100 meters. Calculate the nature and the focal length of the lens in order to correct this defect so that he can see objects at infinity hence correct vision. Also, draw the ray diagram.
What is Ohm's law? Explain by drawing the associated circuit diagram. Also discuss the terms on which the resistance of an electrical conductor depends.
Which is not a part of the female genital system in humans from the following?
The examples of homologous organs are:
Who proposed the Natural Selection Theory?
A convex mirror of radius of curvature 2 metres is attached to a motor bike to watch any other vehicle coming from behind. Calculate the location and position of a vehicle which is at 4 metres behind the bike as seen in the mirror. Also explain by the ray diagram.
The bond present in chlorine molecules is:
The reactions in which new compounds are formed by exchange of ions, are called:
The function of xylem in plants is:
In which of the following plants did Mendel perform his experiments on inheritance?
A solution turns red litmus into blue. The possible pH value of this solution is:
Useful substance in making water bacteria free is:
The alkene in the following is:
Which of the following metals produces hydrogen gas with cold water?
Which of the following metals produces hydrogen gas with cold water?
On which of the following does the resistance of an electrical conductor not depend?
In which combination the four resistors be connected to have minimum resultant resistance?
One needs the help of which of the following rules to know the direction of the magnetic field produced due to a current carrying conductor?
The sun appears whitish:
The alkene in the following is:
Find the values of \( x \) and \( y \) from the following equations: \[ \frac{30}{x - y} + \frac{44}{x + y} = 10 \quad \text{and} \quad \frac{40}{x - y} + \frac{55}{x + y} = 13 \]
If 1 is subtracted from the numerator of a fraction, then it becomes \( \frac{1}{3} \), and if 8 is added to its denominator, then it becomes \( \frac{1}{4} \). Find that fraction.
The unit of the power of the lens is: