History of Microbiology - Mock Test 6

Question 51

In electron microscope source of electrons is from

A) Mercury lamp B) Tungsten metal C) Both a and b D) None of these

---

No Details

Question 52

The magnefication power of electron microscope developed by Knell and Ruska is

A) 10,000x B) 12,000x C) 15,000x D) 20,000x

---

No Details

Question 53

The magnefication power of electron microscope developed by Knell and Ruska is

A) 10,000x B) 12,000x C) 15,000x D) 20,000x

---

No Details

Question 54

Who perfected a magnetic lens in 1927

A) Gabor B) Broglie C) Busch D) None of these

---

No Details

Question 55

Source of light in fluorescence microscopy is from

A) Mercury lamp B) Sunlight C) Both a and b D) None of these

---

No Details

Question 56

Limit of resolution of compound microscope is

A) 0.018 Ao B) 0.1 mm C) 5 ìm D) 1 mm

---

No Details

Question 57

The ability of Microscope to distinguish two objects into two separate objects, is called

A) Resolving power B) Wave length C) N.1⃣ D) None of these

---

No Details

Question 58

If 10x and 40x objectives are used (air is the medium), the numerical aperture is

A) 1.5 B) 2 C) 1 D) 1.8

---

No Details

Question 59

Light gathering capacity of Microscope is called

A) Numerical aperture B) Angular aperture C) Both a and b D) None of these

---

No Details

Question 60

Condensation of light in light Microscope is by

A) Objective B) Condensor C) Ocular D) All of these

---

No Details