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Fill in the blanks:
The __(i)__ of a sound is determined by its __(ii)__. The __(iii)__ of the sound wave depends upon the force with which an object is made to vibrate. A sound of __(iv)__ frequency is called a __(v)__.

The famous person in the picture is the longest reigning queen of England. Who is she?


AMary I
BAnne
CBeatrix
DElizabeth II

Who among the following has won the 2019 Pen Pinter Prize?

A
B
C
D

The number of triangles in the given figure is ________.


A3
B4
C5
D0

The shape of is looking like a _________.

ACone
BCylinder
CSphere
DCube

Study the statements given below and choose the correct answer.
Statement 1 : Numbers having more than two factors are known as composite numbers.
Statement 2 : A number for which sum of all its factors is equal to twice the number is called a perfect number.

AStatement-1 is true and statement-2 is false.
BStatement-1 is false and statement-2 is true.
CBoth statements are true.
DBoth statements are false.

Ramu put a square fence around his vegetable garden to keep the deer away from eating his corn. One side was 10 m in length. If the posts were placed 2 m apart, how many posts did he use?

A16
B20
C10
D15

Human beings are warm-blooded creatures. This means that for the body systems to function, the body temperature must remain constant. What is the average body temperature of a human being in Celsius?

A25°C
B32°C
C37°C
D42°C

Bacteria are classified according to their shapes. The most common ones are cocci, which are spherical, and bacilli, which are rod-shaped. Which of the following is not a type of bacteria?

AVibrio (comma-shaped)
BSpirilla (spiral-shaped)
CSpirochaetes (corkscrew-shaped)
DHelical