Q. When the short circuit condition occurs, the current in the circuit -
1) becomes zero
2) remains constant
3) increases substantially
4) keeps on changing randomly
Q. The part of the human eye on which the image is formed is -
1) pupil
2) cornea
3) retina
4) iris
Q. A metallic wire having resistance of 20ω is cut into two equal parts in length. These parts are then connected in parallel. The resistance of this parallel combination is equal to -
1) 20ω
2) 10ω
3) 5ω
4) 15ω
Q. Two planets orbit the Sun in circular orbits, with their radius of orbit as R1= R and R2 = 4R. Ratio of their periods (T1T2) around the Sun will be -
1) 1/16
2) 1/8
3) 1/4
4) 1/2
Q. Cartilage is NOT found in -
1) larynx
2) nose
3) ear
4) urinary bladder
Q. Which one of the following plant tissues has dead cells?
1) Epidermis
2) Parenchyma
3) Collenchyma
4) Sclerenchyma
Q. In prokaryotic organisms, the nuclear region is not surrounded by a membrane. This undefined nuclear region is known as -
1) Nucleic acid
2) Nucleoid
3) Nucleolus
4) Nucleosome
Q. Which one of the following statements is NOT correct?
1) Biomass is a renewable source of energy
2) Gobar gas is produced when cow dung, crop residues, vegetable waste, and sewage are allowed to decompose in the absence of oxygen
3) Biogas generation reduces soil and water pollution
4) The heating capacity of biogas is very low
Q. Which one of the following is NOT the unit of energy?
1) Joule
2) Watt-hr
3) Newton-metre
4) kg-metre/sec2
Q. Which one of the following countries does NOT have direct access to the sea/ocean?
1) Syria
2) Jordan
3) Azerbaijan
4) Armenia
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