Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects

Geography

Insolation and factors affecting it

In Class 11 Geography, this topic explains insolation—the incoming solar radiation received by Earth—and its role in the chapter Solar Radiation, Heat Balance, and Temperature. Students learn how the angle of the Sun’s rays, duration of daylight, latitude, season, Earth–Sun distance, and atmospheric conditions affect the amount of energy reaching different places. The topic also helps them understand why heating varies across Earth’s surface and how these variations influence temperature patterns and the broader heat balance.

Expert · Level 6 · 25 questions

TOPIC PRACTICE

Quiz this set

Up to 25 questions from this page. Select your focus, then start.

25 questions

Choose questions
View options
  1. It is an average measure of solar energy received at the top of the atmosphere
  2. It is the same surface temperature at every place
  3. It is a fixed layer made of clouds
  4. It is heat from inside Earth
View options
  1. Rays interact with more particles and gases
  2. Rays enter Earth's interior
  3. Rays always turn green
  4. Sun's distance suddenly doubles
View options
  1. Solar altitude is higher and atmospheric path is shorter at noon
  2. Earth stops rotating at noon
  3. Clouds always disappear at noon
  4. Albedo becomes zero at noon
View options
  1. When day length is longer
  2. When night is longer
  3. When Sun is below the horizon
  4. When there is full Moon
View options
  1. Snow has high albedo
  2. Snow produces the Sun
  3. There is no day at high altitude
  4. Snow removes the atmosphere
View options
  1. Tropical low latitudes
  2. Polar high latitudes
  3. Subpolar belt
  4. Permanently ice-covered poles
View options
  1. Incoming shortwave radiation will decrease
  2. Incoming shortwave radiation will be infinite
  3. Solar energy will become entirely underground
  4. Latitude will change
View options
  1. It causes seasonal changes in solar angle and day length
  2. It ends the Sun's energy
  3. It turns oceans solid
  4. It changes atmospheric composition daily
View options
  1. Surface and atmosphere store heat and re-radiate it
  2. Sun shines only at night
  3. Insolation is unrelated to heat
  4. Radiation never reaches Earth
View options
  1. Water and land differ in heat capacity and mixing
  2. Sun does not touch water
  3. No radiation reaches land
  4. Water has no latitude
View options
  1. Reflection by day and longwave obstruction by night
  2. Gravity by day and tides by night
  3. Latitude by day and longitude by night
  4. Sea by day and mountain by night
View options
  1. (80%)
  2. (20%)
  3. (8%)
  4. (0%)
View options
  1. (75%)
  2. (25%)
  3. (100%)
  4. (125%)
View options
  1. Dry dark land surface
  2. Wet light-coloured surface
  3. Fresh snow surface
  4. Dense cloud cover
View options
  1. Water vapour absorbs and scatters some solar radiation
  2. Water vapour makes the Sun brighter
  3. Humidity removes latitude
  4. Water vapour doubles day length
View options
  1. Incoming shortwave solar radiation
  2. Outgoing longwave terrestrial radiation
  3. Seismic wave
  4. Tidal energy
View options
  1. Angle of incidence of sun rays can differ
  2. Clock time is the same
  3. Longitude always creates heat
  4. Seawater is always identical
View options
  1. Solar angle is low and atmospheric path is long
  2. The Sun does not exist
  3. Albedo is always zero
  4. Earth's orbit stops
View options
  1. Absorption may increase because albedo may decrease
  2. Absorption will always become zero
  3. Insolation will return to the Sun
  4. Day length will end
View options
  1. It is affected by latitude season day length atmosphere and surface properties
  2. It is decided only by longitude
  3. It is decided only by ocean salinity
  4. It is decided only by population density
View options
  1. When dust clouds or fog are high
  2. When sky is completely clear and dry
  3. When atmosphere is absent
  4. When it is night
View options
  1. It will decrease greatly
  2. It will become maximum
  3. It will become independent of season
  4. It will increase only in marine areas
View options
  1. Surface insolation may decrease greatly due to clouds
  2. Surface insolation must be maximum
  3. Clouds will have no effect
  4. It will always become night-like
View options
  1. High Sun clear dry air long day and low albedo
  2. Low Sun dense clouds short day and high albedo
  3. Polar night dust and snow
  4. Dense fog oblique rays and high reflection
View options
  1. It creates thermal differences affecting pressure winds and energy balance
  2. It gives equal temperature to all places
  3. It controls only Moon's motion
  4. It decides only the age of mountains

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.