TNPSC Zoology Objective Questions and Answers - 3

Question: 11

The ratio of the fundamental and its harmonics in the case of open organ pipe is _____

(A) 1:2:3

(B) 1:3:5

(C) 1:3:5:7

(D) 1:3:4

Question: 12

The bacteria present in root nodules of leguminous plants are

(A) Acetobacter

(B) Bacillus

(C) Rhizobium

(D) None

Question: 13

The tree requiring minimum water for its growth is

(A) Guava

(B) Mango

(C) Eucalyptus

(D) Babul

Question: 14

Insects that can transmit diseases to human are referred to as

(A) incubators

(B) carriers

(C) reservoirs

(D) vectors

Question: 15

Mass of neutron is _____

(A) 1.00727 amu

(B) 1.00867 amu

(C) 10. 0867 amu

(D) 0.00054 amu