July 24, 2024
Which of the following phenomena are caused by the scattering of light?
1. The colour of clear sky is blue.
2. Twinkling of the stars.
3. The colour of the Sun at Sunrise and Sunset is red.
  • (A) 1 and 2 only
  • (B) 1, 2 and 3
  • (C) 2 and 3 only
  • (D) 1 and 3 only
Which of the following assertions is/are correct?
1. The liver is the largest gland in the body.
2. The liver does not secrete bile juice.
3. Bile juice plays an important role in the digestion of fat.
Use the code given below to select the correct answer —
  • (A) 2 only
  • (B) 1 and 3 only
  • (C) 2 and 3 only
  • (D) 1, 2 and 3
Which of the following is/are necessary for photosynthesis?
1. Chlorophyll
2. Sunlight
3. Carbon dioxide
4. Water
Use the code given below to select the correct answer —
  • (A) 1 and 2 only
  • (B) 1, 2 and 3 only
  • (C) 3 and 4 only
  • (D) 1, 2, 3 and 4
Regarding blood pressure, consider the following statements:
1. The Blood pressure is higher in Veins than in Arteries.
2. The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.
3. Blood pressure is measured with an instrument called sphygmomanometer.
Which of the statements given above is/are correct?
  • (A) 1 and 2 only
  • (B) 2 and 3 only
  • (C) 3 only
  • (D) 1, 2 and 3
What is the SI unit of Resistance?
  • (A) Volt
  • (B) Coulomb
  • (C) Ampere
  • (D) ohm
The dark lines in the solar spectrum are due to
  • (A) Absorption of corresponding wavelengths by the outer layers of the sun.
  • (B) Destructive interference between waves of certain definite wavelengths.
  • (C) Absorption of corresponding wavelengths by the prism used in the photograph.
  • (D) Absence of corresponding wavelengths from the light emitted by the core of the sun
Which of the following use convex mirror?
1. Torches
2. Vehicles headlights
3. Dentists to see larger images of the patient's teeth.
4. Shaving mirror
Select the correct answer using the code given below:
  • (A) 1 and 2 only
  • (B) 2, 3 and 4 only
  • (C) 1, 3 and 4 only
  • (D) None of the above
Which of the following is a highly reactive metal which catches fire when exposed to air?
  • (A) Phosphorus
  • (B) Sodium
  • (C) Iodine
  • (D) Bromine
Regarding amoeba, consider the following assertions:
1. It is a microscopic single-celled organism found in pond water.
2. Amoeba constantly changes its shape and position. 3. Amoeba has a cell membrane, a rounded, dense nucleus and many small bubble-like vacuoles in its cytoplasm
Which of the above assertions is/are correct?
  • (A) 1 and 2 only
  • (B) 2 and 3 only
  • (C) 3 only
  • (D) 1, 2 and 3
Which of the following does not match the characteristics of an Isotope?
  • (A) Isotopes of some elements are radioactive
  • (B) Isotopes are the atoms of different elements
  • (C) Isotopes differ in number of neutrons
  • (D) Isotopes have similar chemical properties

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