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2.35 is: (a) an integer (b) a rational number (c) an irrational number (d) a natural number

2.35 is a rational number because it is a repeating decimal. Hence the correct option is (b).... View Article

Difference between census method and sampling method.

Census Method 1. Nature of enquiry - The extensive enquiry is conducted at each and every unit of the population. 2. Economy - More Time, Money,... View Article

Who appoints the judges of the High Court?

A High Court Judge is appointed by the President of India. He is solely responsible for the appointment of any judge in a High Court. However, he... View Article

Mention any three uses of a map?

Following are the three uses of map. 1. Helps people get their destinations successfully 2. Used in knowing the boundaries of the land 3. Used in... View Article

A glass prism of refracting angle 60° and refractive index 1.5 is completely immersed in water of refractive index 1.33. Calculate the angle of minimum deviation of the prism in this situation, sin-1 0.56 = 34.3°.

= 1.5/1.33 = (3/2)/(4/3) = 9/8 We get, Therefore, The angle of minimum deviation is 8.60... View Article

A man bought 400 meters of cloth for rs. 40,000 and sold it at a rate of rs. 200 per one and a half meter. What was his percentage profit or loss?

Cost per meter = 40000/400 = 100 Sale price for meter = 200/1.5 = 133.33 So, profit margin = (Sales price – cost price)/ Sales price x 100... View Article

What is induced current? State the rule used to find the direction of induced current.

The current induced in a conducting loop that is exposed to a changing magnetic field is known as induced current. The direction of the induced... View Article

Mention the formula to find the length of minor arc

A minor arc measures less than 1800 or its smaller than half circle. Formula to calculate the length of arc = 2 π r (θ/360°) Learn... View Article

Name one solid one liquid and gaseous nonmetal

Solid non-metal - Carbon Liquid non-metal - Bromine Gaseous non-metal – Chlorine... View Article

Find the sum of first five multiples of 3?

The first five multiples of 3 are: 3, 6, 9, 12, 15 Sum = 3 + 6 + 9 + 12 + 15 = 45 Hence, the sum of first five multiples of 3 is 45.... View Article

Find the value of tan 5° tan 25° tan 30° tan 45° tan 65° tan 85°.

tan 5° tan 25° tan 30° tan 45° tan 65° tan 85° = tan 5° tan 25° tan 30° × 1 × tan(90° –... View Article

When was her deafness first noticed? When was it confirmed?

Her deafness was first noticed when she was just eight years old. It was confirmed by the time she was eleven.... View Article

Azimuthal quantum number defines

The azimuthal quantum number is another set of quantum numbers which describe the unique quantum state of an electron. It can be defined as, The... View Article

What do you mean by nesting of list?

A list that occurs as an element of another list (which may ofcourse itself be an element of another list etc) is known as nested list. Common... View Article

What is the motion of a movement of butterfly?

The butterfly does not move in a defined path. Hence, the motion of a butterfly is described as a random motion.... View Article

A molecule of ammonia (NH3) has (a) only single bonds (b) only double bonds (c) only triple bonds (d) two double bonds and one single bond

Nitrogen has three electrons in its outermost shell and hydrogen has 1. 3 hydrogen atoms combine with 1 nitrogen atom to make ammonia. These... View Article

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