77.

78.

79.

80.

81.

82.

83.

84,

85,

Typical industrial radiography pocket dosimeters have a full scale reading of :
(A) 50 milliroentgens (B) 100 milliroentgens
(ಲ) 200 milliroentgens (D) 400 milliroentgens

Consider the following statements about electromagnetic radiations; All of them
(i) have energy

(i) exert pressure on an object

(1) have the same momentum. Of these statements :

(^) (i), (i) and (iii) are correct (B) (i) and (ii) are correct

(ಲ) (ii) and (iii) are correct (D) (i) and (iii) are correct

From which embryonic structure does vertebral column develop ?
(ಹಿ) Notocord (8) Nerve cord (~) Coelom (D) प्तप)

The energy of X-ray photon is 2200 eV. It's frequency would be :
(A) 53x10%Hz (B) 53x107Hz (ಲ) 53x10¥Hz (D) 53x10%5 Hz

The term “metaplasia” refers to :

(ಹಿ) Differentiated cell is able to become transformed into a differentiated cell of another
type

(B) Cell becomes dedifferentiated

(ಲ) Cell grows abnormally fast

(D) A precancerous condition

Clouds are contained in a layer from the earth’s surface, which is called :
(^) Troposphere (8) Stratosphere (C) Mesosphere (D) Ionosphere

Sodium lamps are used in foggy conditions because :

(ಹಿ) Yellow light is scattered less by the fog particles

(B) Yellow light is scattered more by the fog particles

(ಲ) Yellow light is unaffected during passage through the fog

(D) Wavelength of yellow light is the mean of the visible part of the spectrum

The term ‘genetics” was coinded by :
(ಹಿ) Mendel (B) Bateson (~) Punett (D) Morgan

A gene, which affects the character of another gene, not located on similar locus of the
homologous chromosome is called :

(^) Duplicate gene (8) Epistatic gene
(ಲ) Complimentary gene (D) Supplementary gene

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