Science and Technology › PhysicsXLight energy

2013

Conside the following phenomena :
(1). Size of the sun at dusk
(2). Colour of the sun at dawn
(3). Moon being visible at dawn
(4). Twinkle of stars in the sky
(5). Polestar being visible in the sky
Which of the above are optical illusions?

Options

(a)

1, 2 and 3

(b)

3, 4 and 5

(c)

1, 2 and 4

(d)

2, 3 and 5

Answer

(C)

Science and Technology › Specific Diseases

2013

Which of the following diseases can be transmitted from one person to another through
tattooing?
(1). Chikungunya
(2). Hepatitis B
(3). HIV-AIDS
Select the correct answer using the codes given below.

Options

(a)

1 only

(b)

2 and 3 only

(c)

1 and 3 only

(d)

1, 2 and 3

Answer

(B)

Science and Technology › Specific Diseases

2013

Improper handling and storage of Cereal grains and oilseeds result in the production of toxins
known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins
are produced by

Options

(a)

bacteria

(b)

protozoa

(c)

moulds

(d)

viruses

Answer

(C)

Prelims

Science and Technology › PhysicsXLight energy

Options

Answer

Science and Technology › Specific Diseases

Options

Answer

Options

Answer