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Chapter 12 of 18
Formula Sheet

lnsolation — Formula Sheet

ICSE · Class 9 · Geography

2 formulas from lnsolation (ICSE Class 9 Geography) on one page, grouped by topic. Part of the ICSE Class 9 Geography syllabus.

58 questions36 flashcards2 formulas & key relations5 concepts

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A comparison chart illustrating the key differences between insolation (incoming solar radiation) and terrestrial radiation (outgoing Earth radiation), including their sources, wavelengths, and heatin
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One of 5 illustrations for lnsolation in Super Tutor — alongside flashcards, concept maps and practice questions.

2 Entries · 1 Section

Formulas and Key Relations

Factors Affecting Distribution of Temperature

Normal Lapse Rate: Temperature falls by 1°C for every 166 metres of altitude increase

Normal Lapse Rate per 1000 m: 6°C per 1,000 metres of altitude increase

Full sheet with units and worked examples

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Frequently Asked Questions

What are the important topics in lnsolation for ICSE Class 9 Geography?
Key topics in lnsolation include Meaning of Insolation and Solar Energy, Heating of the Atmosphere and Terrestrial Radiation, Differential Heating of Land and Water, Factors Affecting Distribution of Temperature. Study these first, then practise questions on each for Class 9 exams.
How many formulas are in lnsolation?
This sheet lists 2 formulas from lnsolation, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise lnsolation for Class 9 exams?
Learn the core ideas first, then work through the 58 practice questions on lnsolation. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for lnsolation

All ICSE Class 9 Geography Formula Sheet

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