Q1. A water tank appears shallower when it is viewed from top due to
(a) rectilinear propagation of light
(b) reflection
(c) total internal reflection
(d) refraction
Q2. Tears are secreted by which Gland
(a) Zeis gland
(b) Lacrimal glands
(c) Meibomian glands
(d) Ceruminous Glands
Q3. The structure in cells which contains light absorbing pigment is
(a) Endoplasmic reticulum
(b) Nucleus
(c) Chloroplast
(d) Chromoplast
Q4. Ethanol containing 5% water is known is
(a) rectified spirit
(b) denatured spirit
(c) methylated alcohol
(d) power alcohol
Q5. Saccharin is made up of
(a) toluene
(b) phenol
(c) propane
(d) butane
Q6. Which of the following gases is most toxic?
(a) Carbon dioxide
(b) carbon monoxide
(c) sulphur dioxide
(d) chlorine
Q7. The wire of flash bulb is made of
(a) copper
(b) barium
(c) magnesium
(d) silver
Q8. Which of the following is used to remove rust stains on cloth?
(a) Kerosene
(b) wax
(c) Oxalic Acid Solution
(d) Petrol
Q9. For which of the following substances, the resistance decreases with increases in temperature?
(a) Pure silicon
(b) Copper
(c) Nichrome
(d) Platinum
Q10. Which of the following is not a gland ?
(a) Thyroid
(b) Stomach
(c) Liver
(d) Pancreas
