In this question, the sets of numbers given in the alternatives are represented. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g., A can be represented by 02,14, etc., and 'P' can be represented by 56, 68, etc. Similarly you have to identify the set for the word 'BEAT'
What is the principal focus of a spherical mirror?
A) It is a point from which the rays of light appear to be coming from on the principal axis of a convex mirror
B) It is the point on the principal axis through which rays of light parallel to the principal axis pass after reflection or appear to be arising from this point on the principal axis
C) It is the centre of a hollow sphere of which the spherical mirror is a part
D) It is the midpoint of a spherical mirror
A) It is a point from which the rays of light appear to be coming from on the principal axis of a convex mirror
B) It is the point on the principal axis through which rays of light parallel to the principal axis pass after reflection or appear to be arising from this point on the principal axis
C) It is the centre of a hollow sphere of which the spherical mirror is a part
D) It is the midpoint of a spherical mirror
Answer & ExplanationAnswer: B) It is the point on the principal axis through which rays of light parallel to the principal axis pass after reflection or appear to be arising from this point on the principal axis
The average height of A, B and C is 148 cm. If the average height of A and B is 136 cm and that of B and C is 125 cm, then what is the height (in cm) of B?
The Karnataka government launched the Bengaluru city logo- making Bengaluru the first Indian city to get its own logo - on 24 December 2017 for branding the city as a
Out of two numbers, 65% of the smaller number is equal to 45% of the larger number. If the sum of the numbers is 2574, then what is the value of larger number?