Choose the wrong option

Choose the wrong alternative.

P-T graphs of an ideal gas are as shown in figures-2.42 below. Choose the wrong statement from the options given:

An examination consists of 10 multiple choice questions, where each question has 4 options, only one of which is correct. In every question, a candidate earns 3 marks for choosing the correct opion, and -1 for choosing a wrong option. Assume that a candidate answers all questions by choosing exactly one option for each. Then find the number of distinct combinations of anwers which can earn the candidate a score from the set {15, 16,17,18, 19, 20}.

An examination consists of 10 multiple choice questions, where each question has 4 options, only one of which is correct. In every question, a candidate earns 3 marks for choosing the correct opion, and -1 for choosing a wrong option. Assume that a candidate answers all questions by choosing exactly one option for each. Then find the number of distinct combinations of anwers which can earn the candidate a score from the set {15, 16,17,18, 19, 20}.

In the following statements choose wrong options - ltbr (a) Wasp laying egg in a fig fruit is an example of mutual relationship (b) Mycorrhiza is an exmaple of ectoparasitism (c) Physiological ecology at organism level (d) Competitive exclusion principle was given by connell