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Precautions : The following precautions should be taken while using UV lamps:
1) TJV lamps must always be properly shielded.
2)Wear approved goggles when working with or close to the source.
3) As a minimum precaution, view through pyrex glass as this material absorbs UV light and is thus largely opaque to radiation of this wavelength.
4) Protect your skin with thick cloth or by suitable barrier cream if necessary.
5 ) Ensure good ventilation to guard against the dangers of inhaling ozone, which can be produced by the effect of UV on the oxygen in the air.
whose photosynthesis
Pollution due to Radiations: Hazards of nuclear radiations are extremely serious, because they upset the genetic make up of the living beings. Environmental pollution from
Weighing moisture again The similar experiment can be done with a bath towel. Wet the towel and wring it out. Hang it on a coat hanger. Hang the coat hanger on single end of a
How different pressures of air force water from a container Fit a test tube with a two-hole stopper. By one hole place a length of glass tube which extends into the test tube a
Explain the Gastric Phase - Mechanism of Secretion of Gastric Juice Another 45% of the gastric secretion is discharged in this phase. The mechanical presence of food in the ant
INTRODUCTION : You may find this exercise as a practical illustration for the procedure generally followed in the disposal of unserviceable and obsolete items in a laboratory. It
Explain the Hyposecretion or Hypothyroidism in Adult Life Decreased secretion of thyroid hormone results in the development of myxoedema. There is a slowing of mental and physi
Explain Sinus Bradycardia - Electrocardiogram If the SA node discharge rate is slow, the heart rate is slow. ECG is normal in every respect except that the heart rate at rest i
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How do time and temperature work in soil formation? The time taken for the soil formation may be more in some cases or less in others. Hard rocks require more time as comp
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