When I click on Dropdown and select one option, open another option in front of it.

Hi,

Which form are you referring to?

I checked http://www.jotform.me/form/80176039869468 form here but did not see any issue.

Could you please send a screenshot?

Regards

I want to know how if i take a dropdown and fill option 1 to 3 then I
click option 1 automatic other field will be show, if I select option 2
then they field wil be hide, Is that possible.
...

Hi,

Yes you can do conditions on the form. Please refer to Settings -> Conditions section.

Regards

 

https://www.jotform.com/help/350-How-to-Skip-Pages-Using-Conditional-Logic