319.Which type of lamp emits light at a single wavelength

a.ARGON LASER LAMPS
b.LED LAMPS
c.QTH LAMPS
d.PAC LAMPS

318.Melting point of titanium

a.1555degree centigrade
b.1668 degree centigrade
c.2225 degree centigrade
d.1200 degree centigrade

Ans-b.1668 degree centigrade

ref phillips 11nth ed pg 579

317.Ipatropium bromide is contraindicated in

a.Urinary retention
b.Asthma
c.Hypertension
d.All

Ans-a.Urinary retention
refer -KDT 6th ed pg 110