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1 Which one of the following statements is correct about the effects of antibiotics on viruses?
2
Which one of the following cell organelles may play a role in expelling excess water and wastes in the case of unicellular organisms?
3
Which one of the following elements isotope is used in the treatment of cancer?
4
The atomic mass of an element is equal to the sum of the number of
5
Neutrons were discovered by
6
Which one of the following is the most fundamental characteristic of an element?
7
How many covalent bonds are present in a Chloropropane molecule having the molecular formula, C3H7Cl?
8
Which one of the following statements is NOT correct?
9
The cost of energy to operate an industrial refrigerator that consumes 5 kW Power Working 10 hours per day for 30 days will be (Given that the charge per kWh of energy = ` 4)
10
Name the scientist who first used a glass prism to obtain the spectrum of sunlight
11
Light enters the eye through a thin membrane called
12
A lemon kept in water in a glass tumbler appears to be larger than its actual size. It is because of
13
The correct relation between the radius of R and focal length f of a spherical mirror is
14
In the case of a concave mirror, if an object is kept between principal focus F and pole P of the mirror, then which one of the following statements about the image is NOT correct?