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Important Questions for HSC Science (Computer Science) 11th - Maharashtra State Board

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A card from a pack of 52 playing cards is lost. From the remaining cards of the pack three cards are drawn at random (without replacement) and are found to be all spades. Find the probability of the lost card being a spade.

Appears in 3 question papers
Chapter: [0.019] Probability
Concept: Independent Events

An insurance agent insures lives of 5 men, all of the same age and in good health. The probability that a man of this age will survive the next 30 years is known to be 2/3 . Find the probability that in the next 30 years at most 3 men will survive.

Appears in 1 question paper
Chapter: [0.019] Probability
Concept: Conditional Probability

Suppose that 80% of all families own a television set. If 5 families are interviewed at  random, find the probability that
a. three families own a television set.
b. at least two families own a television set.

Appears in 1 question paper
Chapter: [0.019] Probability
Concept: Conditional Probability

The distance between two bodies is doubled. How is the magnitude of the gravitational force between them affected?

Appears in 1 question paper
Chapter: [0.04] Laws of Motion
Concept: Centre of Gravity

Define emissive power and coefficient of emmision of a body.

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

The dimensions of emissive power are

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

A pinhole is made in a hollow sphere of radius 5 cm whose inner wall is at temperature 727oC. Find the power radiated per unit area. [Stefan’s constant σ = 5.7 x 10-8 J/m2 s K4 , emissivity (e) = 0.2]

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

Compute the temperature at which the r.m.s. speed of nitrogen molecules is 832 m/s. [Universal gas constant, R = 8320 J/k mole K, molecular weight of nitrogen = 28.]

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is _____________.

[Wien's constant b = 2 .898 x l0- 3mK]

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

A metal ball cools from 64 °C to 50 °C in 10 minutes and to 42 °C in next 10 minutes. The ratio of rates of fall of temperature during the two intervals is _______.

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

The susceptibility of magnesium at 300 K is 2.4 x 10-5. At what temperature will the susceptibility increase to 3.6 x 10-5?

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

1000 tiny mercury droplets coalesce to form a bigger drop. In this process, temperature of the drop _______ .

(A) increases

(B) may increase or decrease

(C) decreases

(D) does not change

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

A body cools from 62°C to 54°C in 10 minutes and to 48°C in the next 10 minutes. Find the temperature of the surroundings.

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

The susceptibility of magnesium at 300K is 1.2 x 10-5. At what temperature will the susceptibility increase to 1.8 X 10-5?

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

The substance which allows heat radiations to pass through is _______.

(A) iron

(B) water vapour

(C) wood

(D) dry air

Appears in 1 question paper
Chapter: [0.07] Thermal Properties of Matter
Concept: Temperature and Heat

Explain: ‘How is a rainbow formed’?

Appears in 1 question paper
Chapter: [0.09] Optics
Concept: Some Natural Phenomena Due to Sunlight
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Important Questions for HSC Science (Computer Science) 11th Maharashtra State Board. You can further filter Important Questions by subjects and topics. Chapter wise important Questions for 11th Maharashtra State Board. it gets easy to find all 11th important questions with answers in a single place for students. Saving time and can then focus on their studies and practice. Important questions for 11th chapter wise with solutions
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