SEE CLASS 10 BOARD MASTER SUITE

The weight of a person on Earth is 600 N. If the mass of the moon is 1/81 of the Earth's mass and its radius is 1/3.7 of the Earth's radius, calculate the weight of the person on the moon. What will be their mass on the moon?

पृथ्वीमा एक व्यक्तिको तौल ६०० N छ । यदि चन्द्रमाको पिण्ड पृथ्वीको १/८१ भाग र अर्धव्यास १/३.७ भाग भए चन्द्रमामा उक्त व्यक्तिको तौल कति होला ? चन्द्रमामा उनको पिण्ड कति होला ?

In a circle with centre O, quadrilateral ABCD is inscribed. If side AB is produced to point E, prove theoretically that exterior angle ∠CBE is equal to its opposite interior angle ∠ADC.

O केन्द्र भएको वृत्तमा चक्रीय चतुर्भुज ABCD छ । यदि भुजा AB लाई बिन्दु E सम्म लम्ब्याइएको छ भने बाहिरी कोण ∠CBE = भित्री विपरीत कोण ∠ADC हुन्छ भनी प्रमाणित गर्नुहोस् ।

Why is potassium (K) chemically more reactive than sodium (Na), even though both belong to Group IA (Alkali Metals)?

पोटासियम (K) र सोडियम (Na) दुवै समूह IA मा पर्ने भए तापनि पोटासियम किन सोडियम भन्दा बढी प्रतिक्रियाशील हुन्छ ? कारण लेख्नुहोस् ।

If A + B + C = π (180°), prove that: cos 2A + cos 2B + cos 2C = -1 - 4 cos A cos B cos C.

यदि A + B + C = 180° भए प्रमाणित गर्नुहोस्: cos 2A + cos 2B + cos 2C = -1 - 4 cos A cos B cos C.

Transform into passive voice: "Nobody has opened this vintage box for centuries."