- (A) Gram molecule per litre
- (B) Gram atom per litre
- (C) Gram litre
- (D) None of the above
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- Which effect cathode rays have?
- (A) Catalysing
- (B) Oxidizing
- (C) Reducing
- (D) Hydrolysing
- When alumina place in path of cathode rays it glows?
- (A) Red
- (B) Blue
- (C) Green
- (D) Black
- e/m values in cathode rays?
- (A) Do not depend upon nature of gas
- (B) Depend upon nature of gas
- (C) Depends on amount of air
- (D) None of the above
- In the discharge tube in which direction cathode rays travel?
- (A) Diagonal to surface of cathode
- (B) Horizontal to surface of cathode
- (C) Perpendicular to surface of cathode
- (D) Spread on surface of cathode
- Cathode rays were produced in discharged tube at?
- (A) No voltage
- (B) Ordinary voltage
- (C) Low voltage
- (D) High voltage
- Which color of fluorescence is produced when cathode rays strike the walls of glass tube?
- (A) Red
- (B) Green
- (C) Yellow
- (D) Blue
- A beam of electrons emitted from the cathode of a high vacuum tube is called?
- (A) Cathode rays
- (B) Anode rays
- (C) Cation
- (D) None of the above
- What is Anode?
- (A) Cathode is positively charged electrode
- (B) Cathode is negatively charged electrode
- (C) Cathode is neutral electrode
- (D) None of the above