spelling lesson 25

Identify the word that spells 92. => Eighty-two or Forty-two or Seventy-two or Ninety-two..

Two coherent sources of intensity ratio 100:1 interfere. Deduce the ratio of intensity between the maxima and minima in the patter..

A mixture of sodium chloride and anhydrous sodium carbonate has a mass of 5 g. It is dissolved in water, and treated with barium chloride solution. The mass of barium carbonate precipitated is 5.91 g. Calculate the mass of sodium chloride and the percentage of sodium carbonate present in the mixtur..

Question: What is the scientific name of the National bird of India? 1. Psittacula eupatra 2. Passer domesticus 3. Pavo cristatus 4. Corvus splendens Answer: ..

Question: Organisms lacking nucleus and membrane bound organelle are _________. 1. diploids 2. prokaryotes 3. haploids 4. eukaryotes Answer: ..

Question: The crop which is affected by Red rot disease is 1. sugarcane 2. chickpea 3. rice 4. pigeonpea Answer: ..

Question: Unit of wavelength is __________. 1. newton 2. erg 3. dyne 4. angstrom Answer: ..

Question: Calcium deficiency occurs in the absence of vitamin_________. 1. D 2. A 3. C 4. B Answer: ..

Question: The formula for rust is________. 1. CuO 2. Fe 2 O 3 .xH 2 O 3. Al 2 O 3 4. AgS Answer: ..

Question: Ohm's law relates potential difference with ___________. 1. power 2. energy 3. current 4. time Answer: ..