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886. Optic fibres are mainly used for which of the following ?

A. Communication

B. Weaving

C. Musical instruments

D. Food industry

Explanation:

887. Which one of the following techniques can be used to establish the paternity of a child ?

A. Protein analysis

B. Chromosome counting

C. Quantitative analysis of DNA

D. DNA finger printing

Explanation:

888. Which of the following vegetable proteins is considered as good as an animal protein ?

A. Soyabean protein

B. Corn protein

C. Wheat protein

D. Bengal gram protein

Explanation:

889. Which of the following has the least penetrating power ?

A. Alpha particles

B. Beta particles

C. Gamma rays

D. All have the same penetrating power

Explanation:

890. The element required for solar energy conversion is

A. Beryllium

B. Silicon

C. Tantalum

D. Ultra pure carbon

Explanation:

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