List of top Science Questions asked in UP Board

Write a note on the following:
(i) Spore formation in Rhizopus
(ii) Seed germination
Describe the digestive system of human with diagram.
Write a short note on the following:
(i) Importance of pH in daily life
(ii) Micelle
(iii) Metals and Non-metals
Describe co-ordination in plants with examples.
(iii) A refrigerator of 200 W is operated for 10 hours per day. Find out the cost of energy to operate it for 30 days at the rate of ₹6 per kWh.
(i) Draw magnetic lines of force due to a current carrying solenoid.
ii) Write IUPAC names for the following compounds:
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(i) Explain Corrosion. Write its two examples.
(iii) State the law to find the direction of magnetic field produced due to straight current carrying wire.
(ii) Why fuse is used in domestic electrical circuits?
i) Write balanced equations for the following reactions:
(a) Aluminum + Copper chloride → Aluminum chloride + Copper:
(b) Magnesium + Hydrochloric acid → Magnesium chloride + Hydrogen:
(i) Clarify the meaning of power of accommodation of eye lens of human eye. Where is the image formed by the eye lens?
(i) Mention any two properties of magnetic field lines.
(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) 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) Show ray diagram for the refraction of a light ray through a prism and point out the emergent angle and angle of deviation.
(ii) Mention two factors which affect the magnetic field produced by a straight current carrying conductor.
(ii) What is the meaning of magnification produced by a lens? An object of length 5 cm is at a distance of 15 cm from a convex lens. Focal length of the lens is 10 cm. What will be the size of the image?
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
The technique of producing many plants from a single plant under infection-free condition is called—
Chlorophyll is important
Which of the following is an animal hormone?
Formula for Baking Soda is: