Q. Which one of the following plant tissues has dead cells?
1) Epidermis
2) Parenchyma
3) Collenchyma
4) Sclerenchyma
Q. Cartilage is not found in -
1) larynx
2) nose
3) ear
4) urinary bladder
Q. Two planets orbit the Sun in circular orbits, with their radius of orbit as R1 = R and R
1) 1/ 16
2) 1/ 8
3) 1/ 4
4) 1/ 2
Q. A metallic wire having resistance of 20 Ω 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) 20 Ω
2) 10 Ω
3) 5 Ω
4) 15 Ω
Q. Light of uniform intensity impinges perpendicularly on a totally reflecting surface. If the area of the surface is halved, the radiation force on it will become -
1) double
2) half
3) four times
4) one fourth
Q. The part of the human eye on which the image is formed is -
1) pupil
2) cornea
3) retina
4) iris
Q. Which one of the following statements about sound is not correct?
1) Sound travels at a speed slower than the speed of light
2) Sound waves are transverse waves
3) Sound waves are longitudinal waves
4) Sound travels faster in moist air than in dry air
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. Chalk and marble are different forms of -
1) Calcium hydrogen carbonate
2) Calcium carbonate
3) Calcium acetate
4) Sodium carbonate
Q. The number of maximum electron in N Shell is -
1) 2
2) 8
3) 18
4) 32
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