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_______ is considered the largest glacier of Pakistan.
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- (A) Siachen Glacier
- (B) Tirich Mir Glacier
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The filament of an electric bulb is made up of:
The filament of an electric bulb is made up of:
The filament in the bulb consists of a tungsten wire. The choice of this material is based on its ability to withstand a very high temperature, as its melting point is approximately 3,400°C (6,152°F), so it won’t melt or break when it turns white-hot. Additionally, it has high tensile strength and low vapor pressure.
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